Window shading apparatus having installation width adjustment function

The present invention relates to a window shading apparatus comprising a blind sheet module including a blind sheet which is unwound when pulled in a wound state so as to cover a window of a vehicle and a pair of guide rails, each having one side connected to one side of the blind sheet module, the guide rails respectively guiding movements of the pair of cord units. Each of the guide rails includes a location adjusting unit which is to be fixed after a connecting location with respect to the blind sheet module is adjusted. The window shading apparatus capable of adjusting the installation width according to the present invention can adjust the width corresponding to an installation space, in particular, the installation width, while maintaining the operating performance of the shading apparatus at the same level, thereby improving completeness thereof.

TECHNICAL FIELD

The disclosure relates to a window shading apparatus, and more particularly to a window shading apparatus, of which width is adjustable corresponding to an installation space of a vehicle.

BACKGROUND ART

Taking design or the like into account, a window having a relatively large area has recently been installed in a vehicle. The vehicle with the window having such a large area has an effect on satisfying aesthetic requirements of purchasers and users.

The window having the large area in the vehicle gives an improved aesthetic impression to the users of the vehicle, but causes a problem that an air conditioner is highly likely to be overloaded because heat accumulated inside the vehicle by light passing through the window having the large area increases the internal temperature of the vehicle. Further, the window having the large area makes it easy to see into the interior of the vehicle, and thus causes a problem of being inadequate to protection of privacy.

To solve the foregoing problems, there has been used a window shading apparatus capable of reducing the amount of light introduced into the interior of the vehicle but also shielding the interior of the vehicle from the outside.

In regard to such a window shading apparatus, Korean Patent No. 1,426,713 (published on Aug. 6, 2014) has been disclosed. However, such a conventional window shading apparatus has a problem that exactness of installation is decreased because its width is not adjustable according to installation spaces of vehicles. Further, a problem of low completeness arises because the installation is performed without coping with size errors that vehicles have even though the vehicles are of the same model.

DISCLOSURE

Technical Problem

The disclosure is conceived to solve the conventional problems, and an aspect of the disclosure is to provide a window shading apparatus, of which width is adjustable corresponding to an internal installation space of a vehicle.

Technical Solution

To achieve the aspect of the disclosure, there is provided a window shading apparatus including a blind sheet module including a blind sheet unfolded to cover a window of a vehicle as pulled outward in a folded state; a pair of cord units receiving actuation force to pull and unfold the blind sheet; and a pair of guide rails respectively connected to opposite sides of the blind sheet module at one sides thereof to respectively guide the pair of cord units to move, each guide rail including a position adjuster fastened after a connection position is adjusted with regard to the blind sheet module.

Here, the blind sheet module may include: a shaft formed as extended in a widthwise direction to roll up the blind sheet thereon; a frame formed as extended in the widthwise direction to accommodate the shaft and at least a part of the rolled-up blind sheet; and a pair of frame covers connected and fastened to the shaft and the frame at opposite sides of the frame in the widthwise direction, the position adjuster including at least one connector extended to have a predetermined length to connect with one side of the frame.

Meanwhile, the connector and the frame may be connected by fitting.

Further, at least one of the connectors may include a projection protruding in a direction perpendicular to the extending direction, the frame may include a projection accommodating groove to accommodate the projection at a position of connection with the position adjuster, and the fitting may include fitting of the projection to the projection accommodating groove.

Furthermore, the projection accommodating groove may be formed to have a length corresponding to a position adjustable distance so as to prevent the projection from being separated when the connection position of the position adjuster is adjusted.

Meanwhile, the projection is formed to protrude in an outward direction.

Meanwhile, the window shading apparatus may further include a fastener to fasten the connector and the frame in a state that the connection position of the position adjuster is adjusted.

Further, the frame and at least one of the connectors may include fastening holes in which the fastener is penetrated and inserted, and at least one fastening hole of the frame and the connector may include an elongated hole extended in a lengthwise direction.

Meanwhile, the connector may be fitted to the frame by penetrating the frame cover in the widthwise direction, and the frame cover may include at least one connector insertion hole formed in the widthwise direction to insert the connector therein.

Further, the frame cover may be provided to surround at least a part of the frame from outside, the connector may be fitted to an inside of the frame, and the fastener may penetrate and fasten all the frame cover, the frame and the connector.

Meanwhile, the fastener may be fastened after the position adjuster is adjusted in position corresponding to an error of an individual installation space when installed in the vehicle.

Further, at least a part of the frame cover may be inserted in and fitted to an inside of the frame, or provided to surround at least a part of the frame.

Advantageous Effects

A window shading apparatus with an adjustable installation width according to the disclosure improves completeness because the width is adjustable corresponding to an installation space, in particular, the installation width while keeping the same operation performance of the shading apparatus.

MODE FOR CARRYING OUT DISCLOSURE

Below, a window shading apparatus with a function of adjusting an installation width according to an embodiment of the disclosure will be described in detail with reference to the accompanying drawings. Elements described in the following embodiments may be called other names in relevant fields. However, if the elements are similar or identical in terms of their functions, they may be regarded as equivalents even in alternative embodiments. Further, signs assigned to the elements are given for convenience of description. However, content on the drawings with these given signs do not limit the elements to a range in the drawings. Likewise, even though the elements on the drawings are partially modified according to alternative embodiments, they having functional similarity and identity may be regarded as equivalents. Further, if those skilled in the art recognizes natural involvement of elements, descriptions of the elements will be omitted. Meanwhile, the following descriptions will be made on the premise that a ‘widthwise direction’ refers to a direction parallel to a width when installed in a vehicle, and a direction in which a blind sheet module is extended. Further, a window shading apparatus1according to an embodiment of the disclosure is applied to a rear window of a vehicle (not shown), but not limited thereto and may also be applied to a sunroof of the vehicle or the like window region.

FIG.1is a perspective view of a window shading apparatus in a folded position according to an embodiment of the disclosure,FIG.2is a perspective view of a window shading apparatus in an unfolded position according to an embodiment of the disclosure, andFIG.3is an exploded perspective view of the window shading apparatus shown inFIG.2.

As shown inFIGS.1to3, the window shading apparatus1according to an embodiment of the disclosure includes a blind sheet module200, a guide rail70, an actuation unit80, and a cord assembly100. In the window shading apparatus according to the disclosure, the blind sheet module and the guide rail are fastened to one side of a vehicle, and the actuation unit actuates a blind sheet to be positioned between the unfolded position and the folded position.

The blind sheet module200may include a shaft230, a blind sheet240, a shade bar250, a frame210, and a frame cover220.

The blind sheet240is placed at an inner side of a vehicle and structured to block light passing through a window. The blind sheet240may be selectively positioned between the folded position where the blind sheet240is rolled up into the blind sheet module200and a blocking position where the blind sheet240is unfolded to block the window. The blind sheet240may be made of a flexible material to be easily folded and unfolded, and may also be made of a material capable of blocking direct sunlight. For example, the blind sheet240may be made of fabric or non-woven fabric.

The shaft230is structured to roll up the blind sheet240thereon. The shaft230is extended in the widthwise direction so that the blind sheet240can be wholly and uniformly rolled up or unfolded. Further, the opposite sides of the shaft230are spaced apart in the widthwise direction and may be rotatably connected to the frame cover220. Although it is not shown, an elastic member may be connected to the shaft230and give rotational force to the shaft230. The elastic member transmits the rotational force so that the blind sheet240can rotate in a folding direction, thereby rolling up the blind sheet240with the rotational force when there is no pulling force

The shade bar250is structured to pull the blind sheet240. The shade bar250is extended in the widthwise direction and connected to one side of the blind sheet240. The shade bar250, of which opposite sides in the widthwise direction are connected to cord units, moves forward and backward while being kept horizontal as the cord units are moved, thereby determining folded and unfolded degrees of the blind sheet240.

The frame210is structured to generally cover the blind sheet module200. The frame210is extended in a lengthwise direction, and structured to accommodate the shaft230and at least a part of the blind sheet240. For example, the frame210may be formed by bending a board in a rotational direction of the shaft230to have an inner space. The frame210may include an opened portion along the widthwise direction so that the blind sheet240rolled up therein can be pulled out along the shade bar250.

The frame covers220are coupled to opposite ends of the frame210in the widthwise direction and structured to cover the blind sheet module200at lateral sides. The frame covers220form a pair, each of which includes a shaft connector76to be connected to the shaft230at an inner side thereof, and a connecting position of the frame cover220is fixed so that the shaft230can be stably held even though a position is adjusted by a position adjuster75(to be described later).

The guide rails70are extended from the opposite sides of the blind sheet module200, and structured to guide the direction of moving the blind sheet240. The guide rails70may be extended in a direction approximately perpendicular to the extending directions of the shaft230and the shade bar250. Each guide rail70includes a guide-rail body72, and a guide hole74formed inside the guide-rail body72and used as a passage through which the cord unit300of the cord assembly100moves. A position adjuster is provided at one side of the guide rail70, thereby adjusting a connection distance from the foregoing blind sheet module. The guide rail70is configured to attach to a lateral side of a vehicle so that the window shading apparatus can be supported. The blind sheet module is installed in the widthwise direction, connected to a rear shelf of a vehicle or a panel of a vehicle, and the pair of guide rails70may for example be connected along a C-filler. Although the C-filler is described by way of example, the pair of guide rails70may be installed in a D-filler, a periphery of a sunroof, or the like various positions around a window.

The actuation unit80provides actuation force so that the blind sheet240can move between the unfolded position and the folded position. The actuation unit80is connected to the cord assembly100and applies generated actuation force to the cord assembly100. According to an embodiment of the disclosure, the actuation unit80includes a motor82and a rotating gear84. The motor82generates rotational actuation force so that the blind sheet240can move between the unfolded position and the folded position, and the rotating gear84is connected to a rotary shaft of the motor82and rotated by the rotational actuation force of the motor82. Here, the rotating gear84meshes with a gear unit500(to be described later) of the cord assembly100and transmits the rotational actuation force to the gear unit500.

FIG.4is a perspective view of a cord assembly shown inFIG.3,FIG.5is an enlarged perspective view of a region V shown inFIG.4,FIG.6is an enlarged perspective view of the region V shown inFIG.4according to another embodiment,

FIG.7is an exploded perspective view of the cord assembly shown inFIG.4,FIG.8is an enlarged perspective view of a region VIII shown inFIG.7,FIG.9is an enlarged perspective view of the region VIII shown inFIG.8according to another embodiment,FIG.10is a cross-sectional view taken along line X-X shown inFIG.5,FIGS.11A,116,12A and12Bare cross-sectional views taken along line X-X shown inFIG.5according to other embodiments,FIG.13is a cross-sectional view taken along line XIII-XIII shown inFIG.8, andFIG.14is a cross-sectional perspective view taken along line XIV-XIV shown inFIG.2.

The cord assembly100includes the cord unit300and the gear unit500according to an embodiment of the disclosure, as shown inFIGS.4to14. Further, the cord assembly100includes a coupling unit700, a fastening unit800and a guide piece900. The cord assemblies100are arranged as a pair to correspond to the pair of guide rails70, respectively. One pair of cord assemblies100has linear motion in directions opposite to each other as the actuation unit80operates, so that the blind sheet240can reciprocate between the unfolded position and the folded position.

The cord unit300is connected to the blind sheet240and makes the blind sheet240reciprocate between the unfolded position and the folded position by the actuation force provided by the actuation unit80. According to an embodiment of the disclosure, the cord unit300is substantially connected to the blind sheet240by means of the shade bar250arranged at one side of the blind sheet240. In other words, according to an embodiment of the disclosure, the cord unit300is connected by the blind sheet240and the shade bar250. The cord unit300has a cross section to be in partial contact with the inner side of the guide rail70in a plurality of regions along the inner side of the guide rail70, and linearly reciprocates in the lengthwise direction of the guide rail70by the actuation force provided from the actuation unit80.

According to an embodiment of the disclosure, the cross section of the cord unit300has a stellar shape as shown inFIG.10, to be in point contact with the guide rail70at a plurality of points leaving certain distances therebetween along a circumferential direction. Further, the cord unit300moves being in line contact with the guide rail70in a plurality of lines when the blind sheet240moves between the unfolded position for covering the window and the folded position for uncovering the window.

The cord unit300according to the disclosure includes a cord member320and a wire member340. The cord member320moves along the guide rail70by the actuation force provided by the actuation unit80while being in contact with the guide rail70. The cord member320includes a core portion322, and at least one contact portion324protruding from an outer surface of the core portion322and being in contact with an inner surface of the guide rail70. Further, a plurality of contact portions324of the cord member320protrudes from the outer surface of the core portion322while leaving a distance from each other, and is in contact with the inner surface of the guide rail70. Specifically, according to an embodiment of the disclosure, the cord member320has the stellar shape as shown inFIG.10, so that the cross sections of the core portion322and the contact portion324can be in point contact with the inner surface of the guide rail70at a plurality of points.

Meanwhile, as shown inFIGS.11A,11B,12A and12B, the core portion322and the contact portion324of the cord member320according to other embodiments may be different from the cord member320having the stellar shape as shown inFIG.10. The cord member320shown inFIG.11Ais similar to the cord member320shown inFIG.10, but includes a contact portion324of which a contact surface to be in contact with the guide rail70is larger than that of the contact portion324ofFIG.10. The cord member320shown inFIG.11Bincludes a core portion322having a quadrangular cross-section, and contact portions324protruding from four sides of the core portion322. The cord member320shown inFIG.12Aincludes a core portion322having a triangular cross-section, and contact portions324protruding from three sides of the core portion322. The cord member320shown inFIG.12Bincludes a core portion322having a circular cross-section, and a single contact portion324protruding from the circumference of the core portion322.

Here, unlike the cross-section of the cord member320shown inFIGS.10to12B, the core portion322and the contact portion324of the cord member320can contact with the guide rail70in a plurality of regions when the blind sheet240moves between the unfolded position for covering the window and the folded position for uncovering the window. According to an embodiment of the disclosure, the cross section of the cord member320shown inFIG.10has the stellar shape to be in point contact with the inner surface of the guide rail70at a plurality of points, and moves as being in line contact with the inner surface of the guide rail70in a plurality of lines when moved by the actuation force of the actuation unit80.

In this way, the outer surface of the cord member320of the cord unit300is in contact with the inner surface of the guide rail70in a plurality of regions in a linear moving direction of the cord unit300, thereby having effects on improving the movability of the cord unit300inside the guide rail70and reducing friction noise. Further, lubricating oil for lubrication between the cord unit300and the guide rail70may be provided in a recessed region between the plurality of contact portions324, thereby further reducing the friction nose between the cord unit300and the guide rail70while preventing the oil from being leaked to the outside.

The wire member340is arranged inside the cord member320. The wire member340reinforces structural stiffness of the cord member320while the cord member320is reciprocating. The cord unit300is formed by insert injection molding of the cord member320and the wire member340. Specifically, the cord member320is formed by injection molding of synthetic resin, and the wire member340is made of one of metal and nonferrous metal to restrict change in length due to thermal deformation of the cord member320. Substantially, the cord member320is made of synthetic resin and is thus flexible but has shortcomings of weak stiffness and length changeable according to external thermal conditions. To solve such shortcomings of the cord member320having weak stiffness and length changeable according to external thermal conditions, the wire member340is placed inside the cord member320. In particular, the wire member340restricts the changeable length of the cord member320according to the thermal conditions, thereby securing operation reliability of the window shading apparatus1.

Next, the gear unit500is connected to one side of the cord unit300. The gear unit500converts rotational motion of the rotating gear84into linear motion of the cord unit300while interlocking with the rotational motion of the rotating gear84. The gear unit500according to the disclosure includes a gear member520and a gear wire member540.

The gear member520meshes with the rotating gear84and converts the rotational motion of the rotating gear84into the linear motion. The gear member520includes a gear522and a stopper524. The gear522is formed with a rack to mesh with the rotating gear84and corresponds to a moving distance of the cord unit300moving the blind sheet240between the unfolded position and the folded position. In other words, the gear522substantially corresponds to a moving distance of the blind sheet240and is formed with a gear having a rack shape so that the cord unit300can have the linear motion. The stoppers524are arranged with the rack therebetween to have an outer surface not to mesh with the rotating gear8, i.e., the outer surface without gears which mesh with the rotating gear84. The stopper524restricts the movement of the cord unit300between the unfolded position and the folded position of the blind sheet240. Specifically, the stopper524restricts the movement of the cord unit300so that the cord unit300cannot move any more in the unfolded position of the blind sheet10and/or in the folded position of the blind sheet240. More detailed descriptions about the stopper524will be made below with description about operations of the window shading apparatus1.

The gear wire member540is provided inside the gear member520as shown inFIG.9. The gear wire member540reinforces the structural stiffness of the gear member520when the gear member520linearly moves meshing with the rotating gear84. The gear unit500is formed based on insert injection molding the gear member520and the gear wire member540. Specifically, the gear member520is formed by injection molding of synthetic resin, and the gear wire member540is made of one of metal and nonferrous metal to restrict change in length due to thermal deformation of the gear member520. Substantially, the gear member520is made of synthetic resin and is thus flexible but has shortcomings of weak stiffness and length changeable according to external thermal conditions. To solve such shortcomings of the gear member520having weak stiffness and length changeable according to external thermal conditions, the gear wire member540is placed inside the gear member520.

In more detail, the gear wire member540restricts the changeable length of the gear member520according to the thermal conditions, thereby maintaining gear meshing between the rotating gear84and the gear member520and securing operation reliability of the window shading apparatus1.

The coupling unit700, as shown inFIGS.5and7, includes a first coupling portion720connected to the cord unit300, a second coupling portion740connected to the gear unit500, and a coupling hole760formed penetrating the first coupling portion720and the second coupling portion740. Here, the first coupling portion720and the second coupling portion740have the same shape, and are respectively connected to the cord unit300and the gear unit500for more detailed description. Bu surface contact coupling between the first coupling portion720and the second coupling portion740, it is possible to restrict the change in length between the cord unit300and the gear unit500.

The fastening unit800is inserted in a direction transverse to the lengthwise direction of the coupling unit700, thereby fastening the coupling unit700. Specifically, the fastening unit800employs at least one of a pin and a screw to be inserted in the coupling holes760respectively formed in the first coupling portion720and the second coupling portion740, thereby fastening the first coupling portion720and the second coupling portion740each other by at least one of a pin fastening method and a screw fastening method.

Meanwhile, the coupling unit700, as shown inFIGS.6and9, includes the first coupling portion720connected to the cord unit300, and the second coupling portion740connected to the gear unit500. Unlike the coupling unit700shown inFIGS.5and7, the coupling unit700shown inFIGS.6and9is coupled without the fastening unit800. Specifically, the first coupling portion720and the second coupling portion740are fitted to each other. In other words, as shown in the accompanying drawings, the first coupling portion720and the second coupling portion740are sliding-fitted to each other in up and down directions. Here, when the first coupling portion720and the second coupling portion740are fitted to each other, the first coupling portion720and the second coupling portion740may be pressed to prevent separation and reinforce coupling force, and thus firmly coupled and connected. The guide piece900is placed between the shade bar250and the cord unit300. The guide piece900transmits the linear motion of the cord unit300to the shade bar250. In other words, the guide piece900connects the shade bar250and the cord unit300with each other and transmits actuation force so that the blind sheet240can move between the unfolded position and the folded position. According to an embodiment of the disclosure, the guide piece900and the cord unit300are injection molded as a single body, but not limited thereto and may be separately manufactured and then couple the shade bar250and the cord unit300with each other.

FIG.15is a perspective view showing operations of the actuation unit and the cord assembly at the folded position shown inFIG.1, andFIG.16is a perspective view showing operations of the actuation unit and the cord assembly at the unfolded position shown inFIG.2.

With this structure, the window shading apparatus1according to an embodiment of the disclosure operates as follows.

FIGS.1and15illustrate the operations of the window shading apparatus1in which the blind sheet240is positioned at the folded position. When the blind sheet240is in the folded position not to cover the window, the blind sheet240is substantially positioned on the rear shelf of the vehicle. In this case, the movement of the cord assembly100is restricted by the stopper524of the gear unit500even though the rotating gear84is rotating.

FIGS.2and16illustrate the operations of the window shading apparatus1in which the blind sheet240is moved from the folded position to the unfolded position to cover the window.

When the blind sheet240is moved from the folded position shown inFIGS.1and15to the unfolded position shown inFIGS.2and16, the rotating gear84is rotating and the gear units500of the pair of cord assemblies100meshing with the rotating gear84linearly move in the opposite directions. In this case, the cord unit300has a stellar cross-section as shown inFIG.10having the plurality of point contact portions to be in point contact with the inside of the guide rail70, and to be substantially in line contact with the inside of the guide rail70in the plurality of lines during the linear motion inside the guide rail70. Such contact with the guide rail70based on the shape of the cord unit300, i.e., the plurality of contact lines during the linear motion improves mobility of the cord unit300and reduces friction noise between the guide rail70and the cord unit300.

As shown inFIG.16, when the blind sheet240is positioned at the unfolded position, the rotating gear84and the gear unit500does not mesh with each other by the stopper524even though the rotating gear84is rotating, thereby restricting the movement of the cord unit300.

Thus, the cord unit is movable as the guide rail and the cord unit having the stellar shape to be in point contact with the guide rail at a plurality of points are in line contact with each other in a plurality of lines, and therefore the mobility of the cord unit is improved and the friction noise between the guide rail and the cord unit is reduced, thereby enhancing quality of a product.

Further, the gear unit for the linear motion of the cord unit includes the stopper for restricting the movement of the cord unit regardless of the actuation of the actuation unit, thereby improving the operation reliability of the product.

Below, the structure of the window shading apparatus having a function for adjusting the installation width according to the disclosure will be described in detail with reference toFIGS.17to22.

FIG.17is a partial enlarged view showing that the blind sheet module200and the position adjuster75according to the disclosure are coupled.

As shown therein, the opposite sides of the blind sheet module200in the widthwise direction are provided with the pair of guide rails70, respectively. Each guide rail70includes the position adjuster75to adjust a position to which the blind sheet module200is connected. For example, when the window shading apparatus1according to this embodiment is installed in a vehicle, the length in the widthwise direction may be adjusted so that the guide rail70can be precisely installed along the opposite C-fillers of the vehicle.

FIG.18is an exploded and enlarged perspective view of a connector between the blind sheet module200and the guide rail70, andFIG.19is an exploded and enlarged plan view of the connector between the blind sheet module200and the guide rail70.

As shown therein, the position adjuster75may include the connector76extended and formed toward the blind sheet module200. The frame210may include a projection accommodating groove211to accommodate a projection77of the position adjuster75(to be described later). Further, the frame cover220may include a connector insertion hole211formed corresponding to the connector76so that the connector76(to be described later) can pass through the frame cover220and reach the frame210. Eventually, widthwise adjustment between the blind sheet module200and the guide rail70is achieved by the position adjuster75, and thus the guide rail70is firmly fastened to the blind sheet module200. In this regard, detailed descriptions will be made later.

Referring back toFIGS.18and19, the position adjuster75is provided at one side of each guide rail70, and thus the guide rail70is fastened after the position for connection with the blind sheet module200is adjusted in the widthwise direction.

Each individual position adjuster75may include at least one connector76. The connector76is extended toward the blind sheet module200by a predetermined length, and fastened after a relative position to the blind sheet module200in the widthwise direction is adjusted within a predetermined length. At least one connector76may be inserted into the frame210after penetrating the frame cover220in the widthwise direction, for the purpose of connection with the frame210. The connector76may be provided at a plurality of points corresponding to a curved shape of the frame210so as to be in close contact with the inner surface of the frame210.

The connector76and the frame210may be connected by a fitting structure. For example, the connector76may include the projection77protruding outward, and the frame210may include the projection accommodating groove211corresponding to the projection77and accommodating the projection77. Therefore, when the position adjuster75is fitted to the frame cover220, the projection77may be fitted into the projection accommodating groove211. The projection accommodating groove211may be formed to have a predetermined length so that the position adjustment of the position adjuster75can be performed in the widthwise direction in the state that the projection77is fitted to projection accommodating groove211. The projection77may be provided in at least one among one or more connectors76. For example, as shown inFIG.19, there may be three connectors76, each of which includes the projection77protruding outward, and the frame210may be formed with the projection accommodating grooves211corresponding to the positions of three projections77.

Fastening holes400are provided to insert a fastener450therein in the state that the frame210, the frame cover220and the position adjuster75are coupled. The frame210and the frame cover220are formed with circular fastening holes400so as to hole the connecting position. On the other hand, the fastening hole400of the connector76is formed as an elongated hole formed and extended in the widthwise direction so that the position can be adjusted in the widthwise direction with the fastener450inserted therein. Therefore, the frame cover220is fastened to the frame210and stably supports and holds the shaft230, and the position adjuster75adjusts the position in the widthwise direction independently of the frame cover220.

Below, it will be described in detail with reference toFIGS.20A to22Bthat the position is changed during the position adjustment.

FIGS.20A and20Bare partial cross-sectional views showing concept before and after connection of the position adjuster75. For convenience of description, the frame210, the frame cover220and the position adjuster75are illustrated as partially cut open. As shown inFIG.20A, the frame210, the frame cover220and the shaft230are first connected in the blind sheet module200. Then, as shown inFIG.20B, the position adjuster75is inserted into the frame210while passing through the frame cover220in the widthwise direction. In this state, the projection77of the connector76is positioned in the projection accommodating groove211of the frame210, and therefore the position adjuster75is in a provisional connection state where outward separation is prevented.

FIGS.21A and21Bare partial cross-sectional views showing concept of adjusting the connection position of the position adjuster75.

In the window shading apparatus according to the disclosure, the connection position is precisely adjusted after the position adjuster75is fitted to the blind sheet module200as described above with reference toFIGS.20A and20B. Specifically, the gamut of length in the widthwise direction is adjusted corresponding to an error in interior spaces of vehicles for installation, and then the length in the widthwise direction is adjusted. As an example of the adjusted connection position, there may be a certain position between the farthest position of the position adjuster75from the blind sheet module200as shown inFIG.21Aand the closest position as shown inFIG.21B. In this case, a position adjustable distance d may be given as shown inFIG.21A, and the maximum adjustable length2dmay also be given because the width is adjustable at both sides of the blind sheet240. Meanwhile, the length of the blind sheet module200in the widthwise direction and the position adjustable distance of the position adjuster75may be determined based on error data of average interior spaces of vehicles, for example, within a few millimeters.

FIGS.22A and22Bare conceptual views showing partial change in an outer appearance of the window shading apparatus when the position is adjusted.

As shown therein, when an error occurs in an upper side of an installation space, the guide rail70may be transformed a little suitably for the installation position. Further, when an error occurs in a lower side of the installation space and the position adjustment is needed, the connection position of the position adjuster75may be adjusted to adjust the whole widthwise length.

Meanwhile, although it is not shown, the foregoing methods of adjusting the installation positions in the upper and lower sides may be combined for the purpose of precise installation corresponding to the error.

As described above, the window shading apparatus1with the adjustable installation width according to the disclosure improves completeness because the width is adjustable corresponding to the installation space, in particular, the installation width.