WO2018191944A1 - 汽车天窗挡风网 - Google Patents

汽车天窗挡风网 Download PDF

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Publication number
WO2018191944A1
WO2018191944A1 PCT/CN2017/081411 CN2017081411W WO2018191944A1 WO 2018191944 A1 WO2018191944 A1 WO 2018191944A1 CN 2017081411 W CN2017081411 W CN 2017081411W WO 2018191944 A1 WO2018191944 A1 WO 2018191944A1
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WO
WIPO (PCT)
Prior art keywords
mesh
sunroof
elastic piece
windshield
elastic
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Application number
PCT/CN2017/081411
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English (en)
French (fr)
Inventor
程飞
雷振
曹小波
李盛祥
Original Assignee
韦巴斯托股份公司
伟巴斯特车顶供暖系统（上海）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 韦巴斯托股份公司, 伟巴斯特车顶供暖系统（上海）有限公司 filed Critical 韦巴斯托股份公司
Priority to PCT/CN2017/081411 priority Critical patent/WO2018191944A1/zh
Priority to CN201780087250.5A priority patent/CN110325389B/zh
Publication of WO2018191944A1 publication Critical patent/WO2018191944A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
    • B60J7/22—Wind deflectors for open roofs

Definitions

  • the present invention generally relates to the field of automotive sunroofs, and more particularly to windshields for automotive sunroofs.
  • a windshield structure is usually arranged on the sunroof (especially for the panoramic sunroof), so that when the skylight is opened, the airflow passes through the windshield, and the direction of the airflow flowing through the roof of the car is changed to avoid the airflow. Directly enter the car, while reducing the wind noise caused by the airflow when the car is driving at high speed, improve ride comfort.
  • FIG. 1 shows a prior art automotive sunroof windshield structure comprising a base member 4', a deployment member 1', an adjustment device (not shown), and a mesh 3'.
  • the base member 4' is connectable to the vehicle roof member;
  • the deployment member 1' is pivotally mounted relative to the base member 4';
  • the adjustment device pivots the deployment member 1' between the retracted position and the deployed position
  • the mesh 3' is disposed between the base member 4' and the unfolding member 1', for example, the upper portion of the mesh 3' is fixed to the unfolding member 1' by a fastener, and the lower portion of the net 3' is also fastened.
  • the piece is fixed to the base member 4'.
  • the unfolding member 1' is automatically lifted and lowered, and the unfolding (supporting opening) and retracting (winding contraction) of the mesh 3' are achieved.
  • the mesh 3' is fully opened, it is defined as the maximum unfolded state, and the mesh 3' is maintained in the maximum unfolded state by the adjusting means.
  • the object of the present invention is to solve the above problems in the prior art, and to provide an improved automobile sunroof windshield net, which can effectively prevent the mesh cloth from being caught when the sunroof is closed, thereby effectively preventing the water leakage of the mesh cloth. strength.
  • an automotive sunroof windshield comprising: a base member connectable to a vehicle roof member; a deployment member pivotally mounted relative to the base member; an adjustment device And a mesh member, wherein the windshield further comprises an elastic member extending along a width direction of the mesh, when When the mesh is switched from the unfolded state to the retracted state, the elastic member tends to be convexly bent toward the direction of the automobile compartment.
  • the present invention may further include any one or more of the following preferred forms.
  • the base member is a front cross member of a skylight;
  • the unfolding member is generally U-shaped, and at least one end of the unfolding member is configured to be pivotally coupled to the front cross member;
  • the cloth is fixedly coupled between the lateral portion of the U-shaped unfolding member and the front cross member.
  • the resilient member is a spring that is attached to the surface of the mesh opposite the front beam.
  • the shrapnel is provided with a plurality of half cuts along its length, the half cuts being disposed on the surface of the shrapnel opposite the mesh.
  • the shrapnel surface provided with the semi-cut is formed as a planar or curved convex surface.
  • the slit direction of the half slit extends at an angle to the plane or curved convex surface, the angle being 30 to 60 degrees.
  • the vertical cut depth of the half cut is at least half of the thickness of the shrapnel.
  • the plurality of half cuts are substantially evenly distributed on the plane or curved convex surface of the elastic piece, or the spacing of the plurality of half cuts in the middle of the elastic piece is different from the two in the elastic piece
  • the spacing of the plurality of half slits at the end is a distance of 5 mm to 12 mm between the plurality of half slits in the middle of the elastic sheet.
  • the half slit has a slit width of from 1.5 mm to 2 mm.
  • the elastic member is a resilient piece having elastic returning properties and is attached to the surface of the mesh facing the front beam or opposite to the surface of the mesh of the front beam.
  • the elastic piece is automatically elastically curled.
  • the elastic member is made of EPDM or TPV.
  • the windshield comprises at least two shrapnel spaced apart along the length of the mesh.
  • the length of the elastic sheet substantially completely covers the width of the mesh
  • the elastic sheet has a width of 8 mm to 10 mm
  • the elastic sheet has a thickness of 4 mm to 6 mm.
  • the elastic piece is attached to the mesh in a manner that is integrally injection molded, bonded or sewn.
  • the elastic piece is coupled to the mesh by means of an insert, wherein one or more tongues are provided on the connecting surface of the elastic piece.
  • the elastic member disposed on the mesh protrudes and bends in a direction toward the inner space of the automobile compartment, thereby controlling the retracting direction of the mesh of the windshield. It effectively solves the problem that the mesh cloth is leaked by the sunroof glass.
  • the elastic members extending along the width direction of the mesh advantageously increase the wind receiving strength of the mesh and prolong the service life of the wind shield.
  • FIG. 1 is a schematic view of a conventional automobile sunroof windshield
  • FIG. 2 is a schematic view of a sunroof windshield of a vehicle according to a preferred embodiment of the present invention
  • Figure 3 is an enlarged schematic view of the embodiment shown in Figure 2 from another angle;
  • FIG. 4 is a side view of a shrapnel according to an embodiment of the present invention, wherein a surface of the shrapnel having a half slit is a flat surface;
  • Figure 5a is a side view of a shrapnel according to another embodiment of the present invention, wherein the surface of the shrapnel having the semi-cut is a curved convex surface;
  • Figure 5b is a top plan view of the elastic piece shown in Figure 5a;
  • Figure 6 is a side elevational view of a shrapnel in accordance with yet another embodiment of the present invention.
  • the windshield includes a base member, a deployment member, an adjustment device (not shown), and a mesh.
  • the base member can be coupled to a vehicle roof member (not shown) and the deployment member is pivotally mounted relative to the base member.
  • the base member can be, for example, a front cross member 4 of the sunroof, and the unfolding member is generally U-shaped.
  • the unfolding member has a crossbar 1 (lateral portion) and two longitudinal links 2 (longitudinal portions).
  • Both ends of the crossbar 1 are fixedly connected to the two longitudinal links 2, and one or two longitudinal links 2 are pivotally connected to the front cross member of the sunroof by means of adjustment means, such as one or two springs on either side of the windshield 4.
  • adjustment means such as one or two springs on either side of the windshield 4.
  • the mesh 3 is fixedly connected between the crossbar 1 of the windshield and the front cross member 4, for example by upper and lower fasteners (not shown).
  • the present invention advantageously provides the elastic piece 6 which is arranged to extend in the width direction of the mesh cloth 3, and the elastic piece 6 located at one side end portion of the mesh cloth 3 is exemplarily shown in FIG.
  • At least two elastic pieces are preferably arranged at intervals along the length direction of the mesh cloth 3, for example, two elastic pieces respectively disposed at both side ends of the mesh cloth, or substantially in the longitudinal direction of the mesh. Add another shrapnel, or any other method chosen according to actual needs.
  • the generally U-shaped deployment member is provided with a lateral portion (crossbar 1) and two longitudinal portions (for example, two longitudinal links 2), the lateral portion and the longitudinal portion being formed separately during the manufacturing process.
  • the substantially U-shaped unfolding member may be integrally formed, for example, by integral injection molding, for example, the cross bar 1 and the longitudinal link 2 may be integrally formed.
  • the mesh 3 also includes a mesh fabric.
  • the elastic piece is used to protrude and bend in a direction opposite to the front cross member 4 of the sunroof when the mesh 3 is switched from the unfolded state to the retracted state, thereby causing the mesh to be retracted to prevent the mesh from being retracted. Clamped by the sunroof glass.
  • the form of the shrapnel includes, but is not limited to, the various embodiments exemplarily shown in Figures 3-6.
  • the shrapnel 6 is attached to the surface of the mesh 3 opposite the front cross member 4 and is provided with a plurality of half cuts 62 in the length direction on the surface 61 facing away from the mesh 3. .
  • the surface 61 on which the half slits 62 are disposed is planar, and the plurality of half slits 62 are substantially evenly distributed on the plane.
  • half cut is meant incomplete cut with a vertical cut depth that is at least half the thickness of the shrapnel.
  • the shrapnel 6 preferably substantially completely covers the width of the mesh 3, and for most automotive models, the shrapnel may have a width of 8 mm to 10 mm and a thickness of 4 mm to 6 mm. Accordingly, the slit width of the half slit 62 can be set to 1.5 mm to 2 mm.
  • the elastic piece 6 can be integrally molded with the mesh 3 in advance, or can be joined and fixed at the time of post-installation by bonding or sewing.
  • the elastic piece can also be connected to the mesh cloth by means of embedding. For example, it is conceivable to provide one or more tongue-and-groove grooves on the connecting surface 63 of the elastic piece 6 so as to be able to be embedded in the through-hole of the mesh cloth.
  • the sunroof glass (not shown) moves along the guide rail of the sunroof under the driving of the motor, and the longitudinal link 2 rotates clockwise under the elastic force of the spring provided at the axis 5, Until it appears in the fully open state (deployed position) shown in Fig. 3, the mesh 3 of the windshield is supported in front of the sunroof to function to reduce wind noise.
  • the sunroof glass is driven by the motor to move in the opposite direction along the guide rail and pushes the longitudinal link 2 of the windshield to rotate it about the axis 5 in the counterclockwise direction in FIG. Reach the retracted position.
  • the material on the side of the elastic piece 6 on which the half slit 62 is provided is small, the material on the side without the half slit is large, and the side on which the half slit 62 is provided is more easily bent, thereby switching from the unfolded state to the back on the mesh 3
  • the elastic piece 6 tends to be bent and bent in the direction of the arrow in FIG. 3, thereby causing the mesh 3 to retract in a direction opposite to the front cross member 4 of the sunroof, wherein the direction is directed to the interior space of the compartment of the automobile.
  • the mesh 3 is prevented from being pinched by the sunroof glass.
  • the slit direction of the half cut is preferably disposed to extend at an angle to the surface of the shrapnel.
  • the elastic piece 7 is substantially similar to the elastic piece 6 in FIG. 3, and the surface 71 substantially evenly spaced apart from the half slit 72 is flat and can be passed through.
  • the over-joining surface 73 is attached to the mesh, except that the half-cut 72 extends approximately 45° from the surface 71.
  • the angle of extension is not limited to that shown in the drawings, and may be selected from 30 to 60 degrees.
  • Figures 5a to 5b show another embodiment in which the surface 81 of the elastic piece 8 provided with the half slit 82 is an arcuate convex surface while having an angled extending half slit, so that the elastic piece 8 has a structure similar to a fish scale. shape.
  • the curvature of the curved convex surface can improve the unidirectional elastic bending property, and thus, in this manner, the difference in the bending ability of the materials on both sides of the surface 81 and the connecting surface 83 of the elastic piece 8 is more remarkable, and the surface 81 is easily bent and connected.
  • the side of the surface 83 is difficult to bend due to material resistance, so that the purpose of unidirectionally stretching the curved mesh in the direction of the arrow in Fig. 5a is easily achieved. It should be understood that, in practical applications, the optimum curved convex curvature can be selected according to various factors such as the size of the sunroof windshield, the mesh fabric and even the retracting speed of the mesh.
  • the spacing between the plurality of half slits 82 is not exactly the same.
  • the pitch of the plurality of half slits in the middle of the elastic piece can be set to be different from the pitch of the plurality of half cuts at the both ends of the elastic piece.
  • the spacing of the plurality of half slits 82 in the middle of the elastic piece 8 is slightly larger than the spacing of the plurality of half slits 82 at the two ends of the elastic piece 8.
  • the spacing of the plurality of half slits in the middle of the elastic piece may range from 5 mm to 12 mm.
  • Fig. 6 shows another alternative embodiment in which a spring 9 having elastic return performance can be employed.
  • the elastic piece 9 can be connected not only to the surface of the mesh facing the front cross member of the skylight but also to the surface opposite to the front cross member of the sunroof.
  • the elastic piece 9 When the mesh cloth is in the unfolded state, the elastic piece 9 is in an open state, and when the mesh cloth is changed from the unfolded state to the retracted state, the elastic piece 9 can be automatically elastically curled into a ring shape in the direction of the arrow in FIG. 6, thereby driving the mesh back. Shrink.
  • the elastic properties of the elastic piece 9 should be less than the elasticity of the spring for raising or lowering the windshield, and the elastic piece 9 tends to be elastic only when the sun glazing pushes the longitudinal link of the windshield and rotates it back to the mesh. curly.
  • the elastic piece may be made of a suitable material having a certain elastic property, for example, EPDM (ethylene propylene diene monomer) or TPV (thermoplastic vulcanized rubber) or the like.
  • EPDM ethylene propylene diene monomer
  • TPV thermoplastic vulcanized rubber
  • the elastic piece can also be made of an elastic metal piece.
  • the elastic piece provided according to the invention effectively solves the problem that the mesh cloth is clamped by the wind shield when the sunroof windshield is closed, and advantageously increases the wind receiving strength of the mesh cloth and prolongs the service life of the wind shield net.
  • the shrapnel has the advantages of simple structure and convenient processing, and only slightly protrudes from the surface of the mesh after being fixedly connected with the wind shield, does not affect the aesthetics of the finished product, and is easy to implement into the sunroof windshield structure of various automobile models, and the application thereof widely.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Seal Device For Vehicle (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

一种汽车天窗挡风网，包括基座部件（4），其能够连接到汽车车顶部件；展开部件（1），其相对于基座部件（4）可枢转地安装；调节装置，用于使展开部件（1）在缩回位置和展开位置之间枢转；以及网布（3）和沿网布（3）宽度方向延伸布置的弹性部件（6，8），当网布（3）从展开状态转换为缩回状态时，弹性部件（6，8）趋于朝向汽车车厢的方向凸伸弯折。该挡风网在关闭时，设置在网布（3）上的弹性部件（6，8）能够控制挡风网的网布（3）的回缩方向，有效解决了网布（3）被天窗玻璃夹持的问题，并可提高网布（3）的受风强度，延长挡风网的使用寿命。

Description

汽车天窗挡风网 技术领域
本发明总体涉及汽车天窗领域，尤其涉及用于汽车天窗的挡风网。
背景技术
目前在制造汽车天窗时，通常在天窗(尤其是针对全景天窗)上架设有挡风网结构，从而使得天窗打开时，气流经过挡风网后，改变流过汽车车顶的气流方向，避免气流直接进入车厢内，同时降低汽车高速行驶时气流引起的风噪，提高乘车舒适度。
图1示出一种现有的汽车天窗挡风网结构，包括基座部件4′、展开部件1′、调节装置(未示出)和网布3′。其中，基座部件4′能够连接到汽车车顶部件；展开部件1′相对于基座部件4′可枢转地安装；调节装置使展开部件1′在回缩位置和展开位置之间枢转；以及网布3′被设置于基座部件4′和展开部件1′之间，例如网布3′的上部通过紧固件固定于展开部件1′，网布3′的下部同样通过紧固件固定于基座部件4′。从而随着天窗玻璃的打开和关闭，展开部件1′自动起翘和下降，实现网布3′的展开(撑起张开)和回缩(卷绕收缩)。当网布3′完全张开时，定义为最大展开状态，并通过调节装置使网布3′保持最大展开状态。
这种挡风网结构的不足之处在于：在天窗关闭后可能发生漏水。由于网布通常由非弹性材料制成，当关闭天窗时，网布回缩方向不受控制。网布可能(沿图1所示箭头方向)向外弯折进而被关闭的天窗玻璃夹住，引起天窗关闭后漏水的风险。此外，由于网布没有加强件，使用一段时间后由于风力影响，风噪增加会导致挡风网容易损坏。
发明内容
本发明的目的就在于解决现有技术中存在的上述问题，提供一种改进的汽车天窗挡风网，能够有效防止网布在天窗关闭时被夹持导致漏水，并且有效提高网布的受风强度。
为此，根据本发明，提供一种汽车天窗挡风网，包括：基座部件，其能够连接到汽车车顶部件；展开部件，其相对于所述基座部件可枢转地安装；调节装置，用于使所述展开部件在回缩位置和展开位置之间枢转；以及网布，其中，所述挡风网还包括沿所述网布的宽度方向延伸布置的弹性部件，当所述网布从展开状态转换为回缩状态时，所述弹性部件趋于朝向汽车车厢的方向凸伸弯折。
根据上述技术构思，本发明可进一步包括任何一个或多个如下的优选形式。
在某些优选形式中，所述基座部件为天窗的前横梁；所述展开部件为大致U形，并且所述展开部件的至少一端被设置为枢转连接到所述前横梁；所述网布固定连接在U形展开部件的横向部分和所述前横梁之间。
在某些优选形式中，所述弹性部件为弹片，其被连接到相反于所述前横梁的网布表面上。
在某些优选形式中，所述弹片沿其长度方向设有多个半切口，所述半切口设置在相反于所述网布的弹片表面上。
在某些优选形式中，设置有所述半切口的所述弹片表面被形成为平面或弧形凸面。
在某些优选形式中，半切口的切口方向与所述平面或弧形凸面成角度延伸，所述角度为30°～60°。
在某些优选形式中，半切口的垂直切口深度为所述弹片的厚度的至少一半。
在某些优选形式中，多个半切口基本上均布于所述弹片的所述平面或弧形凸面上，或者在所述弹片中部的多个半切口的间距不同于在所述弹片的两端的多个半切口的间距，在所述弹片中部的多个半切口的间距为5mm～12mm。
在某些优选形式中，半切口的切口宽度为1.5mm～2mm。
在某些优选形式中，所述弹性部件为弹片，其具有弹性回位性能，并被连接到朝向所述前横梁的网布表面上或相反于所述前横梁的网布表面上，在所述网布转换为回缩状态时，所述弹片自动弹性卷曲。
在某些优选形式中，所述弹性部件由EPDM或TPV制成。
在某些优选形式中，所述挡风网包括沿所述网布的长度方向间隔布置的至少两个弹片。
在某些优选形式中，所述弹片的长度基本上完全覆盖所述网布的宽度，所述弹片的宽度为8mm～10mm，所述弹片的厚度为4mm～6mm。
在某些优选形式中，所述弹片与所述网布的连接方式为一体注塑、粘接或缝纫。
在某些优选形式中，所述弹片通过嵌入方式与所述网布连接，其中所述弹片的连接表面上设有一个或多个榫槽。
由于本发明提供的技术方案，在挡风网关闭时，设置于网布上的弹性部件在朝向汽车车厢的内部空间的方向上凸伸弯折，从而控制挡风网的网布的回缩方向，有效解决了网布被天窗玻璃夹持导致漏水的问题。此外，沿网布的宽度方向延伸布置的弹性部件有利地提高了网布的受风强度，延长了挡风网的使用寿命。
附图说明
本发明的其它特征以及优点将通过以下结合附图详细描述的优选实施方式更好地理解，需要指出的是，各附图的比例出于清楚说明的目的有可能不一样，但这并不会影响对本发明的理解。附图中相同的标记标识相同或相似的部件，其中：
图1为现有的汽车天窗挡风网的示意图；
图2为根据本发明一种优选实施方式的汽车天窗挡风网的示意图；
图3为图2所示实施方式从另一角度看的放大示意图；
图4为根据本发明一种实施方式的弹片的侧面示意图，其中弹片的设有半切口的表面为平面；
图5a为根据本发明另一种实施方式的弹片的侧面示意图，其中弹片的设有半切口的表面为弧形凸面；
图5b为图5a所示弹片的顶部示意图；
图6为根据本发明又一种实施方式的弹片的侧面示意图。
具体实施方式
下面详细讨论实施例的实施和使用。然而，应当理解，所讨论的具体实施例仅仅示范性地说明实施和使用本发明的特定方式，而非限制本发明的范围。在描述时各个部件的结构位置例如上、下、顶部、底部等方向的表述不是绝对的，而是相对的。当各个部件如图中所示布置时，这些方向表述是恰当的，但图中各个部件的位置改变时，这些方向表述也相应改变。
参见图2和图3，示出了根据本发明一种实施方式的汽车天窗挡风网。该挡风网包括基座部件、展开部件、调节装置(未示出)和网布。其中，基座部件能够连接到汽车车顶部件(图中未示出)，并且展开部件相对于基座部件可枢转地安装。基座部件例如可为天窗的前横梁4，展开部件大致为U形。展开部件具有横杆1(横向部分)和两个纵向连杆2(纵向部分)。横杆1的两端与两个纵向连杆2固定连接，并且一个或两个纵向连杆2通过调节装置，例如挡风网两侧的一个或两个弹簧，枢转连接至天窗的前横梁4。当天窗打开时，一个或两个弹簧将展开部件枢转至展开位置，而在天窗关闭时，将展开部件枢转至回缩位置。网布3例如通过上下紧固件(图中未示出)固定连接至挡风网的横杆1和前横梁4之间。本发明有利地设有沿网布3的宽度方向延伸布置的弹片6，图2中示例性示出位于网布3的一个侧端部的弹片6。然而应当理解的是，优选沿网布3的长度方向间隔布置至少两个弹片，例如，分别布置在网布的两个侧端部的两个弹片，或者沿长度方向在网布的大致中部位置额外布置另一个弹片，或者根据实际需要所选取的任何其它方式。
在该实施方式中，大致U形的展开部件设有横向部分(横杆1)和两个纵向部分(例如，两个纵向连杆2)，横向部分和纵向部分在制造过程中分别形成。然而，大致U形的展开部件可例如通过一体注塑方式一体形成，例如横杆1和纵向连杆2可一体成型。此外，网布3还包括网眼织物。
根据本发明，弹片用于当网布3从展开状态转换为回缩状态时，朝向相反于天窗前横梁4的方向凸伸弯折，从而带动网布回缩以防止 被天窗玻璃夹持。弹片的形式包括但不限于图3至图6示例性示出的各个实施方式。
首先参见图3，在某些实施方式中，弹片6被连接到网布3的相反于前横梁4的表面，并在背离于网布3的表面61上沿长度方向设有多个半切口62。在该实施方式中，设置半切口62的表面61为平面，并且多个半切口62基本上均布于该平面上。所谓的半切口是指不完全切断，其垂直切口深度为弹片的厚度的至少一半。
不论挡风网或网布3的尺寸规格如何，弹片6优选基本上完全覆盖网布3的宽度，对大多数汽车车型来说，弹片的宽度可为8mm～10mm，厚度可为4mm～6mm。相应地，可将半切口62的切口宽度设置为1.5mm～2mm。当将弹片6的连接表面63与网布3连接时，可预先将弹片6与网布3一体注塑成型，或者通过粘接或缝纫在后期安装时连接固定。对于密布透孔的网布材料，还可采用嵌入方式将弹片与网布连接。举例来说，可考虑在弹片6的连接表面63上设有一个或多个榫槽，从而能够嵌入网布的透孔中。
当汽车天窗由关闭状态向开放状态运动时，天窗玻璃(未示出)在电机的驱动下沿天窗的导轨运动，在轴线5处设置的弹簧的弹力作用下，纵向连杆2顺时针旋转，直至呈现为图3所示的完全打开状态(展开位置)，挡风网的网布3被支撑于天窗的前方以起到降低风噪的作用。当汽车天窗由开放状态向关闭状态运动时，天窗玻璃由电机驱动反方向沿导轨运动并推动挡风网的纵向连杆2，以使其沿图3中的逆时针方向绕轴线5旋转，最终到达回缩位置。由于在弹片6上设有半切口62的一侧材料较少，没有半切口的一侧材料较多，设有半切口62的一侧更容易弯曲，从而在网布3从展开状态转换为回缩状态的过程中，弹片6趋于沿图3中的箭头方向凸伸弯折，进而带动网布3朝向相反于天窗前横梁4的方向回缩，其中该方向指向汽车的车厢的内部空间。因而避免了网布3被天窗玻璃夹持。
在某些实施方式中，优选将半切口的切口方向设置为与弹片的表面成角度延伸。如图4所示的实施方式中，弹片7与图3中的弹片6大致相似，大致均匀间隔设置有半切口72的表面71为平面，并可通 过连接表面73连接至网布，区别在于半切口72与表面71大致呈45°延伸。然而，延伸角度并不限于图中所示，可选择为30°～60°。图5a至图5b示出了另一种实施方式，其中在具有成角度延伸的半切口的同时，弹片8的设置半切口82的表面81为弧形凸面，使得弹片8具有类似于鱼鳞片结构的形状。弧形凸面的曲率可以提高单向弹性弯曲性能，因而，以这种方式，弹片8的表面81和连接表面83这两侧材料的弯曲能力差异更为明显，表面81一侧容易弯曲，而连接表面83一侧由于材料抵制很难弯曲，从而轻易地达到沿图5a中箭头方向单向凸伸弯曲网布的目的。应理解的是，实际应用中，可以根据天窗挡风网的大小、网布面料甚至网布的回缩速度等各方面因素进行测试后选取最佳的弧形凸面曲率。
从图5a至图5b示出的实施方式中还可看出，多个半切口82之间的间距并不完全相同。考虑到弹片的不同材料的特性，可将弹片中部的多个半切口的间距设置为不同于在弹片的两端的多个半切口的间距。例如，该实施方式中，弹片8中部的多个半切口82的间距略微大于弹片8两端的多个半切口82的间距，弹片中部的多个半切口的间距范围可为5mm～12mm。
图6示出了另一种可选的实施方式，其中可采用具有弹性回位性能的弹片9。在该实施方式中，弹片9不仅可被连接到网布的朝向天窗前横梁的表面上，还可连接到相反于天窗前横梁的表面上。当网布处于展开状态时，弹片9处于张开状态，在网布从展开状态转换为回缩状态时，弹片9能够沿图6中的箭头方向自动弹性卷曲为环状，进而带动网布回缩。弹片9的弹性性能应当小于用于升起或下降挡风网的弹簧的弹性，当且仅当天窗玻璃推动挡风网的纵向连杆并使其旋转回缩网布时，弹片9趋于弹性卷曲。
在上述各个实施方式中，弹片可由具有一定弹性性能的适当材料制成，例如，EPDM(三元乙丙橡胶)或TPV(热塑性硫化橡胶)等等。尤其针对图6所示实施方式，弹片还可由弹性金属片制成。根据本发明设置的弹片有效解决了天窗挡风网关闭时网布被挡风网夹持的问题，并有利地提高了网布的受风强度，延长了挡风网的使用寿命。 该弹片具有结构简单、加工方便的优点，并且与挡风网连接固定后仅略微突出于网布表面，不影响成品的美观性，易于实施到各种汽车车型的天窗挡风网结构中，应用广泛。
当一个部件被称为“连接到”或“耦接到”另一个部件时，其可直接连接或耦接到另一个部件或者存在介于中间的部件。相反，当一个部件被称为“直接连接到”或“直接耦接到”另一个部件时，不存在介于中间的部件。
以上已揭示本发明的技术内容及技术特点，然而可以理解，在本发明的创作思想下，本领域的技术人员可以对上述公开的构思作各种变化和改进，但都属于本发明的保护范围。上述实施方式的描述是例示性的而不是限制性的，本发明的保护范围由权利要求所确定。

Claims (15)

  1. 一种汽车天窗挡风网，包括：
    基座部件，其能够连接到汽车车顶部件；
    展开部件，其相对于所述基座部件可枢转地安装；
    调节装置，用于使所述展开部件在回缩位置和展开位置之间枢转；以及
    网布，其特征在于：
    所述挡风网还包括沿所述网布的宽度方向延伸布置的弹性部件，当所述网布从展开状态转换为回缩状态时，所述弹性部件趋于朝向汽车车厢的方向凸伸弯折。
  2. 根据权利要求1所述的汽车天窗挡风网，其特征在于，所述基座部件为天窗的前横梁；所述展开部件为大致U形，并且所述展开部件的至少一端被设置为枢转连接到所述前横梁；所述网布固定连接在U形展开部件的横向部分和所述前横梁之间。
  3. 根据权利要求2所述的汽车天窗挡风网，其特征在于，所述弹性部件为弹片，其被连接到相反于所述前横梁的网布表面上。
  4. 根据权利要求3所述的汽车天窗挡风网，其特征在于，所述弹片沿其长度方向设有多个半切口，所述半切口设置在相反于所述网布的弹片表面上。
  5. 根据权利要求4所述的汽车天窗挡风网，其特征在于，设置有所述半切口的所述弹片表面被形成为平面或弧形凸面。
  6. 根据权利要求5所述的汽车天窗挡风网，其特征在于，半切口的切口方向与所述平面或弧形凸面成角度延伸，所述角度为30°～60°。
  7. 根据权利要求6所述的汽车天窗挡风网，其特征在于，半切口的垂直切口深度为所述弹片的厚度的至少一半。
  8. 根据权利要求5所述的汽车天窗挡风网，其特征在于，多个半切口基本上均布于所述弹片的所述平面或弧形凸面上，或者在所述弹片中部的多个半切口的间距不同于在所述弹片的两端的多个半切口的间距，在所述弹片中部的多个半切口的间距为5mm～12mm。
  9. 根据权利要求5所述的汽车天窗挡风网，其特征在于，半切口的切口宽度为1.5mm～2mm。
  10. 根据权利要求2所述的汽车天窗挡风网，其特征在于，所述弹性部件为弹片，其具有弹性回位性能，并被连接到朝向所述前横梁的网布表面上或相反于所述前横梁的网布表面上，在所述网布转换为回缩状态时，所述弹片自动弹性卷曲。
  11. 根据前述权利要求中任一项所述的汽车天窗挡风网，其特征在于，所述弹性部件由EPDM或TPV制成。
  12. 根据权利要求11所述的汽车天窗挡风网，其特征在于，所述挡风网包括沿所述网布的长度方向间隔布置的至少两个弹片。
  13. 根据权利要求11所述的汽车天窗挡风网，其特征在于，所述弹片的长度基本上完全覆盖所述网布的宽度，所述弹片的宽度为8mm～10mm，所述弹片的厚度为4mm～6mm。
  14. 根据权利要求11所述的汽车天窗挡风网，其特征在于，所述弹片与所述网布的连接方式为一体注塑、粘接或缝纫。
  15. 根据权利要求11所述的汽车天窗挡风网，其特征在于，所述弹片通过嵌入方式与所述网布连接，其中所述弹片的连接表面上设有一个或多个榫槽。
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