Shade device for vehicle

Abstract

To provide a shade device for vehicles capable of moving a shade properly regardless of its thickness while suppressing the increase in driving force required for opening and closing the shade.SOLUTION: A shade device for vehicles according to the present disclosure comprises: a shade; a winding-up member for winding up the shade; a winding member mounted on the winding-up member so as to rotate coaxially and integrally with the winding-up member; a string fixed at one end to the winding member and wound around the winding member; a driving device for rotating the winding member and the winding-up member in a winding-up direction of the shade by pulling the string; and a position adjustment mechanism for adjusting a fixed position of the string on the winding member in a circumferential direction of the winding-up member.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present disclosure relates to a shade device for a vehicle that is provided on a roof of a vehicle. [Background technology]

[0002] A sunshade drive device has been known, including a shade shaft, a sheet-shaped sunshade, first and second cable drums, a drive cable, and a driven cable (see, for example, Patent Document 1). In this drive device, the shade shaft is rotatably arranged along one edge of a roof window provided in the roof portion of a vehicle, and the sunshade is retractably wound up in a roll around the shade shaft. The sunshade exposes the roof window when retracted to the retraction end position and blocks the light when retracted to the retraction end position. The first and second cable drums each have cable guide grooves formed on their outer circumferential surfaces and are attached to the corresponding end of the shade shaft so as to be integrally rotatable. One end of the drive cable is connected to the first cable drum so as to be retractable and retractable along the cable guide groove, and the other end of the drive cable is connected to one end of a terminal bar attached to the retraction end of the sunshade. Furthermore, an intermediate portion of the drive cable is connected to a drive drum that is driven to rotate forward and backward using a motor as a drive source. One end of the driven cable is connected to the second cable drum so as to be able to be wound and unwound along the cable guide groove, and the other end of the driven cable is connected to the other end of the terminal bar. The drive device also includes a tension spring that applies tension between the one end and an intermediate portion of the drive cable, and a tension spring that applies tension between the other end and the intermediate portion of the drive cable.

[0003] When a sunshade wound in a roll around a shade shaft is pulled out to shade the roof window, the drive drum is rotated by a motor in a predetermined direction to wind up the drive cable and move in one direction. As a result, one end of the terminal bar is pulled by the drive cable and moves toward the pull-out end position. As the terminal bar moves, the sunshade is pulled out while rotating the shade shaft in the pull-out direction. Furthermore, as the shade shaft rotates in the pull-out direction, the first and second cable drums rotate in the same direction, and the drive cable and the driven cable are wound into the cable guide groove of the first or second cable drum. The cable guide groove of the first and second cable drums has a length corresponding to the pull-out length of the sunshade and is formed in a spiral shape that changes in accordance with the change in the winding diameter of the sunshade wound around the shade shaft. Therefore, the other end of the terminal bar is also pulled by the driven cable and moves toward the pull-out end position. The terminal bar moves to the pull-out end position while pulling out the sunshade so that the roof window is shaded. When the sunshade is wound up around the shade shaft to expose the roof window, the motor rotates the drive drum in the opposite direction to the predetermined direction, moving the drive cable in the other direction. This causes the first drum connected to the drive cable to rotate in the opposite direction, causing the shade shaft and the second cable drum to rotate in the same direction as the first cable drum. As a result, the sunshade is wound up around the shade shaft, and the roof window is exposed to light. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-274693 Summary of the Invention [Problem to be solved by the invention]

[0005] The thickness of the sunshade varies from one sunshade to another, and the amount of winding of the sunshade on the shade shaft varies depending on the thickness of the sunshade, which causes a discrepancy between the amount of winding of the drive cable by the drive drum and the amount of movement (unwinding) of the sunshade.If a discrepancy occurs between the amount of winding of the drive cable and the amount of movement of the sunshade, the sunshade may not be able to move (open or close) properly, or the driving force required to open or close the sunshade may increase.

[0006] Therefore, a main object of the present disclosure is to provide a shade device for a vehicle that can move a shade appropriately regardless of the thickness of the shade and can suppress an increase in the driving force required to open and close the shade. [Means for solving the problem]

[0007] The vehicle shade device disclosed herein is a vehicle shade device that includes a shade and a winding member that winds up the shade and is installed on the roof of a vehicle, and includes a winding member that is attached to the winding member so as to rotate coaxially with and integrally with the winding member, a string that has one end fixed to the winding member and is wound around the winding member, a drive device that pulls the string to rotate the winding member and the winding member in the direction of winding up the shade, and a position adjustment mechanism that allows the fixed position of the string on the winding member to be adjusted circumferentially around the winding member.

[0008] The vehicle shade device of the present disclosure includes a winding member attached to a winding member that winds up a shade so as to rotate coaxially and integrally with the winding member. One end of a string is fixed to the winding member, and the string is wound around the winding member. A drive device pulls the string to rotate the winding member and the winding member in the direction of winding the shade, thereby winding the shade onto the winding member and opening it. However, shades may have individual differences in thickness, and the amount of winding of the shade on the winding member varies depending on the shade thickness, resulting in a discrepancy between the amount of string pulled out by the drive device (the amount unwound from the winding member) and the amount of movement of the shade (the amount unwound from the winding member). In light of this, the vehicle shade device of the present disclosure is provided with a position adjustment mechanism that allows the fixed position of the string on the winding member to be adjusted circumferentially around the winding member. As a result, even if the amount of winding of the shade around the winding member changes depending on the thickness of the shade, the fixed position of the string on the winding member can be shifted (rotated) in the circumferential direction of the winding member, thereby reducing the difference between the amount of movement of the string pulled out from the winding member by the drive device and the amount of movement of the shade.As a result, the vehicle shade device of the present disclosure can move the shade appropriately regardless of the thickness of the shade, and can suppress an increase in the drive force required to open and close the shade. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view showing a main part of a vehicle including a vehicle shade device according to the present disclosure. [Figure 2] 1 is a schematic configuration diagram showing a vehicle shade device according to the present disclosure. [Figure 3] 1 is a front view showing first and second drum members included in the vehicle shade device of the present disclosure. [Figure 4] 3 is a plan view showing a first slack absorbing mechanism included in the vehicle shade device of the present disclosure. FIG. [Figure 5] 10 is a plan view showing a second slack absorbing mechanism included in the vehicle shade device of the present disclosure. FIG. [Figure 6] 10 is a partial cross-sectional view showing a third slack absorbing mechanism included in the vehicle shade device of the present disclosure. FIG. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. [Figure 8] 1 is a schematic configuration diagram for explaining the operation of a vehicle shade device according to the present disclosure. [Figure 9] 10A and 10B are schematic diagrams for explaining the operation of the vehicle shade device of the present disclosure. [Figure 10] 1 is a schematic configuration diagram for explaining the operation of a vehicle shade device according to the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0010] Next, embodiments of the present disclosure will be described with reference to the drawings.

[0011] FIG. 1 is a perspective view showing a vehicle V including a vehicle shade device 1 (hereinafter simply referred to as "shade device") of the present disclosure. The vehicle V includes a sunroof device SR provided between a front roof panel Rf and a rear roof panel Rr fixed to a vehicle body F. The shade device 1 is attached to the vehicle body F so as to be located below a transparent movable panel Pm and a transparent fixed panel Pf of the sunroof device SR. However, the shade device 1 may also be attached to the vehicle body F so as to be located below a fixed transparent roof (glass roof) provided between the front roof panel Rf and the rear roof panel Rr.

[0012] As shown in Fig. 2, the shade device 1 includes a shade 2, a winding member 3, a shade bar 4, a pair (two) of shoes 5L, 5R, a pair (two) of guide members 6, and a rotation drive device 10 for opening and closing the shade 2. The shade 2 is, for example, a rectangular light-blocking sheet made of cloth, and has an area large enough to completely cover the light-transmitting portions of the movable panel Pm and fixed panel Pf of the sunroof device SR. The shade 2 may also have heat-blocking properties.

[0013] The winding member 3 is a cylindrical body having a relatively small outer diameter (for example, about 10-30 mm), and the base end of the shade 2 is fixed (locked) to the outer peripheral surface of the winding member 3. A generally conical (frustum-shaped) spool (winding member) 30 is coaxially attached to one axial end of the winding member 3 (in this embodiment, the end on the left side of the vehicle V). In this embodiment, the spool 30 is attached to the winding member 3 so that its larger diameter side (bottom side) is located on the winding member 3 side, and is coaxially rotatable integrally with the winding member 3. The shade 2 can be wound onto the winding member 3 and opened by rotating the winding member 3 and the spool 30 in a predetermined winding direction around their respective axial centers As (see FIG. 2). A winding groove 31 (see FIG. 6) is formed on the outer peripheral surface of the spool 30 and extends spirally around the axial center As of the spool 30.

[0014] The shade bar 4 is hollow and formed by extruding, for example, an aluminum alloy. The shade bar 4 is fixed to the tip end of the shade 2 (the end opposite the base end fixed to the winding member 3). In this embodiment, a cylindrical portion into which a rod is inserted is formed at the tip end of the shade 2. The cylindrical portion and the rod are fitted into a shade holding groove (not shown) formed in the shade bar 4, thereby fixing the shade bar 4 to the tip end of the shade 2. In this embodiment, the shoes 5L, 5R are formed from a resin containing, for example, potassium titanate fiber and have a symmetrical structure. Each shoe 5L, 5R is inserted into the internal space 4x of the shade bar 4 from the corresponding longitudinal end of the shade bar 4 and fixed to the shade bar 4.

[0015] Each guide member 6 is formed by extruding, for example, an aluminum alloy, and has a uniform cross-sectional shape in the longitudinal direction. Each guide member 6 slidably supports the corresponding shoe 5L or 5R and the corresponding side end of the shade 2. The pair of guide members 6 are fixed to a housing 7 that accommodates the rotation drive device 10 and to a support member (not shown) via bolts or the like so that they extend parallel to each other and have a gap corresponding to the width of the shade 2. The housing 7 and the support member are fixed to the vehicle body F below the sunroof device SR so that the winding member 3 extends in the width direction of the vehicle V and the pair of guide members 6 extend in the front-to-rear direction of the vehicle V. In this embodiment, the housing 7 is located on the front side of the vehicle V, and the winding member 3 is located on the rear side of the vehicle V.

[0016] The rotation drive device 10 of the shade device 1 pulls one first string S1 and one second string S2 to move the tip of the shade bar 4, i.e., the shade 2, away from the take-up member 3, and pulls one third string S3 to rotate the take-up member 3 around the axis As. As shown in FIG. 2 , the rotation drive device 10 includes a first drum member 11, a second drum member 12, a single motor M as a rotation drive source, and a power transmission mechanism T.

[0017] The first drum member 11 is formed from resin or the like to have a cylindrical outer peripheral surface and is rotatable around the first axis A1. As shown in FIG. 3 , a winding groove 111 is formed on the outer peripheral surface of the first drum member 11 and extends spirally around the first axis A1. The first drum member 11 also includes a first gear G1, which is a spur gear or helical gear that is coaxial with the first drum member 11 and can rotate integrally therewith. The first gear G1 may be formed integrally with the first drum member 11, or a first gear G1 formed separately from the first drum member 11 may be fixed to the first drum member 11.

[0018] The second drum member 12 is formed of resin or the like to have a cylindrical outer peripheral surface and is rotatable about the second axis A2. As shown in FIG. 3 , a winding groove 121 is formed on the outer peripheral surface of the second drum member 12, extending spirally around the second axis A2. The second drum member 12 also includes a second gear G2, which is a spur gear or helical gear that is coaxial with the second drum member 12 and rotatable integrally therewith. The second gear G2 may be formed integrally with the second drum member 12, or the second gear G2 may be formed separately from the second drum member 12 and fixed to the second drum member 12. The first and second drum members 11 and 12 are arranged side by side in the vehicle width direction of the vehicle V so that the first and second axes A1 and A2 are parallel to each other and extend vertically.

[0019] The first string S1 is a wire (metal wire) having an outer diameter of, for example, approximately 0.6-1.5 mm. However, the first string S1 may also be a thread or the like made of chemical fiber or the like. A fixing piece (not shown) is attached to the base end of the first string S1, and the fixing piece is fitted into a fitting portion formed on the upper end (one end) of the outer peripheral surface of the first drum member 11. As a result, the base end of the first string S1 is fixed to the upper end (one end) of the outer peripheral surface of the first drum member 11. As can be seen from FIG. 3 , when the first drum member 11 rotates around the first axis A1 in a predetermined first winding direction (see the direction of the arrow in FIG. 8 ), the first string S1 is wound around the winding groove 111 from the upper end (one end) of the first drum member 11 to the lower end (the other end). Furthermore, the first string S1 protrudes outward from the winding groove 111 in a tangential direction relative to the winding groove 111.

[0020] 2 and 4, the tip of the first string S1 is slidably inserted into one guide member 6 and also slidably inserted into a string passage 5p (see FIG. 4) formed at the outer end of one shoe 5L fixed to the internal space 4x of the shade bar 4. Furthermore, the first string S1 is connected to the shade bar 4 via a first slack absorption mechanism 51. As a result, the first string S1 is connected to one end side (the left end side in FIG. 4) of the shade bar 4 (the tip end of the shade 2) in the vehicle width direction via the string passage 5p of the shoe 5L. The first slack absorption mechanism 51 is capable of absorbing slack in the first string S1 and includes the shoe 5L as a guide member, a slider 55, and a spring 57 as a biasing member.

[0021] As shown in Fig. 4, the shoe 5L includes a string passage 5p, a first guide space 5a, a second guide space 5b, and a spring support portion 5s. The first guide space 5a communicates with the string passage 5p and extends in the longitudinal direction of the shoe 5L from one end side (the left end side in Fig. 4) of the shoe 5L relative to the longitudinal center. The second guide space 5b communicates with the first guide space 5a and extends in the longitudinal direction of the shoe 5L from the other end side of the shade bar 4 (the right end side in Fig. 4) of the shoe 5L relative to the first guide space 5a. The spring support portion 5s is formed at the inner end of the shoe 5L so as to be located on the opposite side from the string passage 5p, i.e., the central side of the shade bar 4 and inside the second guide space 5b.

[0022] The slider 55 of the first slack absorption mechanism 51 is a small piece made of resin or the like, and is disposed within the first guide space 5a of the shoe 5L located at one end of the shade bar 4 so as to be movable (slidable) in the longitudinal direction of the shade bar 4 (shoe 5L). The spring 57 of the first slack absorption mechanism 51 is a tension coil spring and disposed within the first and second guide spaces 5a and 5b. The base end (right end in FIG. 4) of the spring 57 is fixed to the spring support portion 5s within the second guide space 5b, and the tip end (left end in FIG. 4) of the spring 57 is fixed to one end (right end in FIG. 4) of the slider 55 within the first guide space 5a. As a result, the slider 55 is disposed slidably within the internal space 4x of the shade bar 4 and is biased by the spring 57 in a direction from one end (left end in FIG. 4) of the shade bar 4 toward the center (to the right in FIG. 4). The tip of the first string S1 is fixed to the other end (the left end in FIG. 4) of the slider 55 in the first guide space 5a of the shoe 5L, and is thereby connected to the shade bar 4.

[0023] The second string S2 is also a wire (metal wire) having an outer diameter of, for example, approximately 0.6-1.5 mm. However, the second string S2 may also be a thread or the like made of chemical fiber or the like. A fixing piece (not shown) is attached to the base end of the second string S2, and the fixing piece is fitted into a fitting portion formed on the upper end (one end) of the outer circumferential surface of the second drum member 12. As a result, the base end of the second string S2 is fixed to the upper end (one end) of the outer circumferential surface of the second drum member 12. As can be seen from FIG. 3 , when the second drum member 12 rotates around the second axis A2 in a predetermined second winding direction (see the arrow direction in FIG. 8 ), the second string S2 is wound around the winding groove 121 from the upper end (one end) of the second drum member 12 to the lower end (the other end). The second string S2 also protrudes outward from the winding groove 121 in a tangential direction relative to the winding groove 121.

[0024] 2 and 5, the tip of the second string S2 is slidably inserted into the other guide member 6 and also slidably inserted into a string passage 5p formed at the outer end of the other shoe 5R fixed to the internal space 4x of the shade bar 4. Furthermore, the second string S2 is connected to the shade bar 4 via a second slack absorbing mechanism 52. As a result, the second string S2 is connected to the other end side (the right end side in FIG. 5) of the shade bar 4 (the tip end of the shade 2) in the vehicle width direction via the string passage 5p of the shoe 5R. The second slack absorbing mechanism 52 is capable of absorbing slack in the second string S2 and, like the first slack absorbing mechanism 51, includes the shoe 5R as a guide member, a slider 55, and a spring 57 as a biasing member.

[0025] The shoe 5R also includes a string passage 5p, a first guide space 5a, a second guide space 5b, and a spring support portion 5s. The first guide space 5a of the shoe 5R communicates with the string passage 5p and extends in the longitudinal direction of the shoe 5R from the center in the longitudinal direction to the other end side (the right end side in FIG. 5) of the shoe 5R. The second guide space 5b communicates with the first guide space 5a and extends in the longitudinal direction of the shoe 5R from the first guide space 5a to one end side of the shade bar 4 (the left end side in FIG. 5). The spring support portion 5s is formed at the inner end of the shoe 5R so as to be located on the opposite side from the string passage 5p, i.e., the center side of the shade bar 4 and inside the second guide space 5b.

[0026] The slider 55 of the second slack absorbing mechanism 52 is also a small piece made of resin or the like, and is disposed within the first guide space 5a of the shoe 5R located on the other end side of the shade bar 4 so as to be movable (slidable) in the longitudinal direction of the shade bar 4 (shoe 5R). The spring 57 of the second slack absorbing mechanism 52 is also a tension coil spring and disposed within the first and second guide spaces 5a and 5b. The base end (left end in FIG. 5) of the spring 57 is fixed to the spring support portion 5s within the second guide space 5b, and the tip end (right end in FIG. 5) of the spring 57 is fixed to one end (left end in FIG. 5) of the slider 55 within the first guide space 5a. As a result, the slider 55 of the second slack absorbing mechanism 52 is disposed slidably within the internal space 4x of the shade bar 4 and is biased by the spring 57 in a direction from the other end (right end in FIG. 5) of the shade bar 4 toward the center (leftward in FIG. 5). The tip of the second string S2 is fixed to the other end (the right end in FIG. 5) of the slider 55 in the first guide space 5a of the shoe 5R, and is thereby connected to the shade bar 4.

[0027] The third string S3 is also a wire (metal wire) having an outer diameter of, for example, about 0.6-1.5 mm. However, the third string S3 may also be a thread made of chemical fiber or the like. A fixing piece (not shown) is attached to the base end of the third string S3, and the fixing piece is fitted into a fitting portion formed on the lower end (other end) of the outer circumferential surface of the second drum member 12. As a result, the base end of the third string S3 is fixed to the lower end of the outer circumferential surface of the second drum member 12.

[0028] 2 and 3, when the second drum member 12 rotates around the second axis A2 in the direction opposite to the second winding direction, the third string S3 is wound around the winding groove 121 from the lower end (other end) to the upper end (one end) of the second drum member 12. The third string S3 also protrudes from the winding groove 121 in a tangential direction to the winding groove 121 and on the opposite side to the second string S2. The leading end of the third string S3 is fixed (locked) to the large-diameter end of the spool 30 fixed to the winding member 3, and the third string S3 is wound around the winding groove 31 of the spool 30 in the direction opposite to the winding direction of the shade 2.

[0029] As shown in FIG. 6 , a third slack absorption mechanism 60 that absorbs slack in the third string S3 is disposed inside the winding member 3, which is a hollow cylinder. The third slack absorption mechanism 60 includes a torsion spring 65 as a biasing member that biases the spool 30 in a direction opposite to the winding direction of the shade 2 so as to absorb slack in the third string S3. The spool 30 also includes a shaft portion 33 and an outer tubular member 35 as insertion portions that, together with the torsion spring 65, constitute the third slack absorption mechanism 60. The shaft portion 33 extends axially from the large-diameter end face of the spool 30 toward the opposite side from the small-diameter end face. The outer tubular member 35 is a substantially cylindrical body that functions as a holder that rotatably supports the shaft portion 33. The outer tubular member 35 is inserted into the winding member 3 and fixed thereto so as to rotate integrally with the winding member 3.

[0030] As shown in Fig. 7, a plurality of protrusions (protrusions) 3p are formed on the inner peripheral surface of the winding member 3 at equal intervals in the circumferential direction. In this embodiment, for example, 12 protrusions 3p are formed on the inner peripheral surface of the winding member 3 at intervals of 30°, and each protrusion 3p protrudes from the inner peripheral surface of the winding member 3 toward the axial center As and extends parallel to the axial center As over the entire length of the winding member 3. In addition, as shown in Fig. 7, the outer cylindrical member 35 forming the insertion portion of the spool 30 has a pair of recesses 35r formed at 180° intervals so that each recess 35r fits into one of the plurality of protrusions 3p of the winding member 3. Each recess 35r is defined between two protrusions protruding radially outward from the outer peripheral surface of the outer cylindrical member 35 and extends axially over the entire length of the outer cylindrical member 35. That is, the outer tubular member 35 of the spool 30 is fixed to the winding member 3 so as to rotate integrally with the winding member 3 by fitting the protrusions 3p of the winding member 3 into each of the pair of recesses 35r, thereby attaching the spool 30 to the winding member 3. The multiple protrusions 3p of the winding member 3 and the pair (plurality) of recesses 35r of the outer tubular member 35 form a position adjustment mechanism 90 that makes it possible to adjust the fixed position of the third string S3 on the spool 30 in the circumferential direction of the winding member 3.

[0031] The torsion spring 65 of the third slack absorbing mechanism 60 is a so-called torsion coil spring, and is disposed within the outer cylindrical member 35 so as to extend coaxially with the axis As. One end (left end in FIG. 6) 65a of the torsion spring 65 is held by the shaft portion 33 of the spool 30 so as to be unrotatable around the axis As relative to the spool 30. The other end (right end in FIG. 6) 65b of the torsion spring 65 is held by the shaft portion 33 of the spool 30 and the outer cylindrical member 35 so as to be unrotatable around the axis As relative to the outer cylindrical member 35, i.e., the winding member 3. The torsion spring 65 is held by the shaft portion 33 of the spool 30 and the outer cylindrical member 35 in a state where it is twisted in advance around the axis As in the winding direction of the shade 2 so as to urge the spool 30 relative to the outer cylindrical member 35 in the direction opposite (clockwise in FIG. 7) to the winding direction of the shade 2 relative to the winding member 3 (counterclockwise in FIG. 7).

[0032] 7, the first stopper ST1 is configured by a protrusion 33p protruding radially outward from the outer circumferential surface of the shaft portion 33 of the spool 30, and a first abutment surface 351 formed on the outer tubular member 35. In this embodiment, a first end face of the protrusion 33p on the downstream side in the winding direction of the shade 2 and the first abutment surface 351 extend in the radial and axial directions of the shaft portion 33. When the first end face of the protrusion 33p abuts against the first abutment surface 351 of the outer tubular member 35, rotation of the spool 30 relative to the winding member 3 in the winding direction of the shade 2 is restricted.

[0033] 7, the second stopper ST2 is composed of a protrusion 33p of the shaft portion 33 and a second abutment surface 352 formed on the outer cylindrical member 35 so as to be spaced apart from the first abutment surface 351 in the circumferential direction and in the direction opposite to the winding direction of the shade 2. In this embodiment, the second end face of the protrusion 33p on the upstream side in the winding direction of the shade 2 and the second abutment surface 352 extend in the radial and axial directions of the shaft portion 33. When the second end face of the protrusion 33p abuts against the second abutment surface 352 of the outer cylindrical member 35, rotation of the spool 30 relative to the winding member 3 in the direction opposite to the winding direction of the shade 2 is restricted.

[0034] When the shaft portion 33 and outer tubular member 35 of the spool 30 and the torsion spring 65 are assembled to the winding member 3, the spool 30 is urged by the torsion spring 65 in the direction opposite to the winding direction of the shade 2 (clockwise in FIG. 7), causing the second end face of the protrusion 33p to abut against the second abutment surface 352 of the outer tubular member 35. Furthermore, when the third string S3 fixed to the spool 30 is wound and pulled by the second drum member 12, the first end face of the protrusion 33p of the spool 30 (shaft portion 33) abuts against the first abutment surface 351 of the outer tubular member 35. In this embodiment, the spring constant (rigidity) of the torsion spring 65 is determined so that when the rotation of the second drum member 12 and the spool 30 stops and there is no slack in the third string S3 between the second drum member 12 and the spool 30, the tension of the third string S3 becomes slightly greater than the biasing force of the torsion spring 65, and the first end face of the protrusion 33p and the first abutment surface 351 of the outer tube member 35 are maintained in abutment.

[0035] As shown in Fig. 2, the rotation drive device 10 includes a third gear (idler gear) G3 that meshes with the first gear G1 of the first drum member 11 and the second gear G2 of the second drum member 12. The motor M of the rotation drive device 10 rotates the second drum member 12 in forward and reverse directions around the second axis A2 via the power transmission mechanism T. As a result, the first drum member 11 rotates in the same direction as the second drum member 12 in synchronization with the rotation of the second drum member 12. In this embodiment, the first winding direction of the first drum member 11 and the second winding direction of the second drum member 12 are the same direction. As a result, by rotating the motor M in a predetermined first direction, the first drum member 11 can be rotated in a first winding direction to wind the first string S1 into the winding groove 111 of the first drum member 11, and the second drum member 12 can be rotated in a second winding direction to wind the second string S2 into the winding groove 121 of the second drum member 12.

[0036] In the shade device 1, the specifications of the first drum member 11 including the winding groove 111 and the second drum member 12 including the winding groove 121 are determined so that when the motor M rotates a predetermined angle in a first direction, the amount of the first string S1 wound by the first drum member 11 and the amount of the second string S2 wound by the second drum member 12 become the same, and when the motor M rotates a predetermined angle in a second direction opposite to the first direction, the amount of the first string S1 unwound by the first drum member 11 and the amount of the second string S2 unwound by the second drum member 12 become the same. Furthermore, in the shade device 1, the specifications of the second drum member 12 including the winding groove 121 are determined so that when the motor M rotates a predetermined angle in the first direction, the amount of the second string S2 wound by the second drum member 12 and the amount of the third string S3 unwound are the same, and when the motor M rotates a predetermined angle in the second direction, the amount of the second string S2 unwound by the second drum member 12 and the amount of the third string S3 unwound are the same.

[0037] In this embodiment, the motor M is, for example, a brushed DC motor, and is controlled by a control device 100 (see FIG. 2). The control device 100 includes a microcomputer having a CPU, ROM, RAM, an input / output interface, etc., and controls the motor M in response to the user's operation of a shade open / close switch (not shown). The power transmission mechanism T includes, for example, a reducer and a gear mechanism. Furthermore, the shade device 1 includes a plurality of pulleys P (see FIG. 2) rotatably supported by the housing 7 or the like so as to regulate the paths of the corresponding first, second, or third strings S1, S2, S3.

[0038] Next, the operation of the above-mentioned shade device 1 will be described with reference to FIGS.

[0039] When the shade 2 is wound up by the winding member 3 and at least partially open, and the user issues a command to close (fully close or half close) the shade 2 via the shade opening / closing switch, the control device 100 controls the motor M of the rotation drive device 10 to rotate the second drum member 12 in the second winding direction (counterclockwise in FIG. 8), as shown in Fig. 8. When the second drum member 12 rotates in the second winding direction, the first drum member 11 rotates in the first winding direction (counterclockwise in FIG. 8) in synchronization with the rotation of the second drum member 12.

[0040] When the motor M of the rotary drive device 10 rotates the first and second drum members 11, 12 in the first or second winding direction, the first string S1 is wound onto the first drum member 11, and the second string S2 is wound onto the second drum member 12. As a result, the tip of the shade bar 4, i.e., the shade 2, is pulled by the first and second strings S1, S2 toward the first and second drum members 11, 12 so as to move away from the winding member 3. This allows the shade 2 to be pulled out from the winding member 3 and fully or partially closed.

[0041] Furthermore, as the shade 2 is pulled out, the winding member 3 rotates in the direction opposite to the winding direction of the shade 2. Furthermore, as shown by the dashed dotted line in Fig. 9 , the rotation drive device 10 rotates the second drum member 12 in the second winding direction, and while unwinding the third string S3 from the winding groove 121, winds the second string S2 from the upper end side to the lower end side of the second drum member 12 into the now empty winding groove 121. This causes the winding member 3 to rotate in the direction opposite to the winding direction of the shade 2 as the shade 2 is pulled out, and the third string S3 unwound from the second drum member 12 can be wound onto the spool 30 that rotates together with the winding member 3.

[0042] On the other hand, when the shade 2 is pulled out from the winding member 3 and at least partially closed, and the user issues a command to open the shade 2 (fully open or half open) via the shade opening / closing switch, the control device 100 controls the motor M of the rotation drive device 10 to rotate the second drum member 12 in the direction opposite to the second winding direction (clockwise in FIG. 10), as shown in Fig. 10. When the second drum member 12 rotates in the direction opposite to the second winding direction, the first drum member 11 rotates in synchronization with the rotation of the second drum member 12 in the direction opposite to the first winding direction (clockwise in FIG. 10).

[0043] When the motor M of the rotary drive device 10 rotates the first and second drum members 11, 12 in the direction opposite to the first winding direction or the direction opposite to the second winding direction, the first string S1 is unwound from the first drum member 11, the second string S2 is unwound from the second drum member 12, and further the third string S3 is wound onto the second drum member 12. As a result, while the unwinding of the first and second strings S1, S2 allows the shade bar 4, i.e., the tip of the shade 2, to move toward the winding member 3, the winding (pulling) of the third string S3 rotates the spool 30 and the winding member 3 in the winding direction of the shade 2, allowing the shade 2 to be wound onto the winding member 3 and opened. As a result, the shade 2 can be wound onto the winding member 3 and opened fully or halfway.

[0044] As described above, in the shade device 1, the first string S1 is wound onto the first drum member 11, and the second string S2 is wound onto the second drum member 12, which is separate from the first drum member 11. Therefore, it is easy to match the amount of the first string S1 wound onto the first drum member 11 with the amount of the second string S2 wound onto the second drum member 12, and it is also easy to match the amount of the first string S1 reeled out onto the first drum member 11 with the amount of the second string S2 reeled out onto the second drum member 12. Furthermore, the second drum member 12 reels out the third string S3 when it reels out the second string S2, and reels out the third string S3 when it reels out the second string S2. Therefore, it is possible to easily match the amount of the second string S2 wound by the second drum member 12 with the amount of the third string S3 unwound, and it is also possible to easily match the amount of the second string S2 unwound by the second drum member 12 with the amount of the third string S3 wound.

[0045] As a result, the tip of the shade bar 4, i.e., the shade 2, is prevented from moving in an inclined state relative to the winding member 3, allowing the shade 2 to be moved (opened or closed) appropriately. Furthermore, when the second drum member 12 is rotated, one of the second and third strings S2, S3 can be unwound while the other is wound up without the second and third strings S2, S3 interfering with each other. This prevents an increase in the axial length of the second drum member 12. Therefore, the shade device 1 prevents the entire device from becoming larger and allows the shade 2 to be moved appropriately.

[0046] Each of the first and second drum members 11 and 12 has a winding groove 111 or 121 formed on its outer circumferential surface so as to extend spirally around the first or second axis A1 or A2. The second string S2 is wound around the winding groove 121 from the upper end (one end) to the lower end (the other end) of the second drum member 12 in the axial direction, and the third string S3 is wound around the winding groove 121 from the lower end (the other end) to the upper end (one end) of the second drum member 12. This allows one of the second and third strings S2 and S3 to be unwound from the winding groove 121 while the other string is wound around the vacant winding groove 121 without interfering with each other when the second and third strings S2 and S3 are rotated. As a result, it is possible to effectively suppress an increase in the axial length of the second drum member 12.

[0047] Furthermore, in the shade device 1, the biasing mechanism (retractor) that biases the shade 2 in the winding direction can be omitted from the winding member 3, allowing the diameter of the winding member 3 to be reduced. Furthermore, by adopting a configuration in which the third string S3 is wound around the second drum member 12 to open the shade 2, the range of movement of the shade 2 is not limited by the constraints of the biasing mechanism. Furthermore, omitting the biasing mechanism allows for a reduction in the weight and cost of the entire device. Furthermore, the structure for regulating the paths of the first, second, and third strings S1, S2, and S3 can be made lower in height and simpler than a geared cable, etc., thereby allowing for a more compact device. Furthermore, the loss associated with driving the first, second, and third strings S1, S2, and S3 is also reduced compared to a geared cable, etc., preventing the rotation drive device 10 from becoming larger.

[0048] Furthermore, in the shade device 1, the first and second drum members 11, 12 are arranged side by side in the width direction of the vehicle V. This makes it possible to suppress an increase in the dimensions of the shade device 1 in the height direction and in the direction in which the shade 2 is pulled out (the front-rear direction of the vehicle V), and ensure good mountability of the shade device 1.

[0049] Furthermore, in the shade device 1, the first winding direction of the first drum member 11 and the second winding direction of the second drum member 12 are the same direction, and the rotation drive device 10 includes a first gear G1 that is coaxial with the first drum member 11 and rotatable therewith, a second gear G2 that is coaxial with the second drum member 12 and rotatable therewith, a third gear G3 that meshes with the first and second gears G1 and G2, and a single motor M that rotates the second drum member 12 in forward and reverse directions. This makes it possible for the single motor M to rotate the first and second drum members 11 and 12 in the first or second winding direction and to rotate the first and second drum members 11 and 12 in the direction opposite to the first winding direction or the direction opposite to the second winding direction. Furthermore, using only one motor M reduces the number of parts of the rotation drive device 10, thereby reducing costs, and also makes it possible to reduce the size and weight of the rotation drive device 10 and, ultimately, the shade device 1. However, the rotary drive device 10 is not limited to one including the first, second and third gears G1, G2, G3 and a single motor M, as long as it rotates the second drum member 12 in the second winding direction when the first drum member 11 is rotated in the first winding direction, and rotates the second drum member 12 in the opposite direction to the second winding direction when the first drum member 11 is rotated in the opposite direction to the first winding direction.

[0050] In the shade device 1, a shade bar 4 having an internal space 4x is fixed to the tip of the shade 2. Furthermore, the first string S1 is inserted into the internal space 4x from one end of the shade bar 4 and connected to the shade bar 4 via a first slack absorbing mechanism 51 that absorbs slack in the first string S1. Furthermore, the second string S2 is inserted into the internal space 4x from the other end of the shade bar 4 and connected to the shade bar 4 via a second slack absorbing mechanism 52 that absorbs slack in the second string S2. Furthermore, the shade device 1 includes a third slack absorbing mechanism 60 that is disposed inside the winding member 3 and biases the spool 30 in the direction opposite to the winding direction of the shade 2.

[0051] That is, the shade 2 and the first, second and third strings S1, S2 and S3 will elongate due to changes in ambient temperature, application of a tensile load, etc. If elongation occurs in at least one of the shade 2 and the first, second and third strings S1, S2 and S3, the correlation between the amount of movement of the first and second strings S1 and S2 or the third string S2 (the amount pulled out from the winding member 3) and the amount of movement of the shade 2 will be lost, causing slack in at least one of the first, second and third strings S1, S2 and S3. If the slack in at least one of the first, second and third strings S1, S2, S3 exceeds the allowable amount, the shade 2 cannot be moved properly by winding the first, second and third strings S1, S2, S3 onto the first and second drum members 11, 12, and in some cases, the first, second or third string S1, S2, S3 may come off the pulley P.

[0052] For example, if the shade 2 is stretched, even if an attempt is made to close the shade 2 by winding the first and second strings S1 and S2 onto the first or second drum member 11 or 12 by a specified amount, the shade 2 will not be pulled out from the winding member 3 until the slack caused by the stretch is eliminated. As a result, the shade 2 will not be pulled out from the winding member 3 by the specified amount, and the winding member 3 and the spool 30 will not rotate enough, causing slack in the first and second strings S1 and S2. Also, if the shade 2 is stretched, even if an attempt is made to open the shade 2 by winding the third string S3 onto the second drum member 12 by the specified amount, the shade 2 will not be wound onto the winding member 3 until the slack caused by the stretch is eliminated. As a result, the shade 2 will not be wound onto the winding member 3 by the specified amount, and the movement of the shade 2 will be insufficient, causing slack in the third string S3. Furthermore, if stretching occurs in at least one of the first, second and third strings S1, S2 and S3, the first string S1 and the like will become loose between the first drum member 11 and the shade bar 4 and the like.

[0053] Based on this, in the shade device 1, the first and second strings S1, S2 are connected to the shade bar 4 via the first or second slack absorbing mechanism 51, 52. Also, in the shade device 1, the third slack absorbing mechanism 60 is disposed inside the winding member 3. This prevents slack from occurring in at least one of the first, second, and third strings S1, S2, and S3, even if stretch occurs in the shade 2 or at least one of the first, second, and third strings S1, S2, and S3, making it possible to move the shade 2 appropriately.

[0054] As described above, the first and second slack absorption mechanisms 51, 52 include a slider 55 that is slidably disposed in the internal space 4x of the shade bar 4 and to which the tip of the first or second string S1, S2 is fixed, and a spring 57 that urges the slider 55 in a direction from one end or the other end of the shade bar 4 toward the center of the shade bar 4. When there is no slack in the first or second string S1, S2 between the first or second drum member 11, 12 and the shade bar 4, the slider 55 of the first and second slack absorption mechanisms 51, 52 moves close to one end or the other of the shade bar 4 within the first guide space 5a of the shoe 5L or 5R against the urging force of the spring 57 due to the tension from the first or second string S1, S2, as shown in Figures 4 and 5 .

[0055] On the other hand, when slack is about to occur in the first or second string S1, S2 between the first or second drum member 11, 12 and the shade bar 4, the slider 55 moves toward the center of the shade bar 4 due to the biasing force of the spring 57 in response to a decrease in the tension of the first or second string S1, S2. As a result, the movement of the slider 55 pulls the first or second string S1, S2 in a direction from the first or second drum member 11, 12 toward the shade bar 4.

[0056] As a result, the shade device 1 can effectively prevent slack in the first and second strings S1, S2 due to elongation of at least one of the shade 2 and the first and second strings S1, S2. Furthermore, the internal space 4x of the shade bar 4 can be effectively utilized as a space for arranging the first and second slack absorbing mechanisms 51, 52, thereby effectively preventing the shade device 1 from becoming larger. Furthermore, the first and second slack absorbing mechanisms 51, 52 include a shoe 5L or 5R as a guide member fixed to the internal space 4x of the shade bar 4. Each shoe 5L, 5R includes a spring support portion 5s that supports a base end of a spring 57 at the center of the shade bar 4, and a first guide space (guide portion) 5a that slidably supports a slider 55 connected to the tip of the spring 57 at one end or the other end of the shade bar 4. This ensures good slidability of the slider 55, and the biasing force of the spring 57 effectively prevents the first and second strings S1, S2 from becoming loose.

[0057] Furthermore, in the shade device 1, when there is no slack in the third string S3 between the second drum member 12 and the spool 30, the tension of the third string S3 overcomes the biasing force of the third slack absorption mechanism 60, i.e., the torsion spring 65, and the first end face of the protrusion 33p of the spool 30 (shaft portion 33) abuts against the first abutment surface 351 of the outer cylinder member 35. As a result, the rotation of the spool 30 in the winding direction of the shade 2 relative to the winding member 3 is restricted by the first stopper ST1. As a result, the shade 2 can be moved appropriately by winding the third string S3 onto the second drum member 12 (see the solid arrow in FIG. 7) or unwinding it from the second drum member 12 (see the dotted arrow in FIG. 7).

[0058] On the other hand, when slack is about to occur in the third string S3 between the second drum member 12 and the spool 30, the spool 30 is rotated in the opposite direction to the winding direction of the shade 2 by the biasing force (restoring force) of the torsion spring 65 in response to a decrease in the tension of the third string S3 until the tension of the third string S3 and the biasing force of the torsion spring 65 are balanced. As a result, the third string S3 is wound onto the spool 30, and the slack of the third string S3 is absorbed by the third slack absorption mechanism 60. As a result, in the shade device 1, even if elongation occurs in at least one of the shade 2 and the third string S3, slack can be effectively suppressed in the third string S3, and the shade 2 can be moved appropriately.

[0059] Furthermore, in the shade device 1, the third slack absorbing mechanism 60 is disposed inside the cylindrical winding member 3. This allows the interior of the winding member 3 to be effectively utilized as an arrangement space for the third slack absorbing mechanism 60, and effectively prevents the shade device 1 from becoming larger.

[0060] The third slack absorbing mechanism 60 also includes a first stopper ST1 that restricts rotation of the spool 30 relative to the winding member 3 in the winding direction of the shade 2. As a result, even if a large tension is applied from the second drum member 12 to the third string S3 that is pulled out from the spool 30 and wound into the winding groove 121 when the shade 2 is wound onto the winding member 3 and opened, the rotation angle of the spool 30 relative to the winding member 3 in the winding direction of the shade 2, i.e., the amount of twist of the torsion spring 65, can be limited to a predetermined upper limit or less. As a result, it is possible to effectively prevent the tension applied to the third string S3 from the spool 30 (tension in the winding direction of the third string S3 onto the spool 30) from becoming excessive and to effectively prevent a decrease in the durability of the torsion spring 65 due to excessive twisting in the winding direction of the shade 2.

[0061] Furthermore, the third slack absorbing mechanism 60 includes an outer tube member 35 that is fixed to the winding member 3 via the position adjustment mechanism 90 so as to rotate integrally with the winding member 3 and that rotatably supports the shaft portion 33 extending from the spool 30, and a torsion spring (biasing member) 65 that is held by the spool 30 (shaft portion 33) and the outer tube member 35 so as to bias the spool 30 in the direction opposite to the winding direction of the shade 2 relative to the outer tube member 35. This makes it possible to dispose the third slack absorbing mechanism 60, which biases the spool 30 in the direction opposite to the winding direction of the shade 2, inside the winding member 3 while suppressing an increase in the outer diameter and inner diameter of the winding member 3.

[0062] Incidentally, when manufacturing the shade device 1, the shade 2 is wound up on the winding member 3 while being pulled with a predetermined force (for example, about 100 N). For this reason, individual differences may occur in the thickness of the shade 2, and the amount of winding (number of turns) of the shade 2 on the winding member 3 varies depending on the thickness of the shade 2, resulting in a discrepancy between the amount of winding (unwinding amount) of the third string S3 by the rotation drive device 10 (second drum member 12), i.e., the amount of payout from the spool 30, and the amount of movement (payout amount) of the shade 2. In light of this, the shade device 1 is provided with a position adjustment mechanism 90 that makes it possible to adjust the fixed position of the third string S3 on the spool 30 in the circumferential direction of the winding member 3 when attaching the spool 30 to the winding member 3.

[0063] That is, according to the position adjustment mechanism 90, when attaching the spool 30 to the winding member 3, the spool 30 can be rotated by a predetermined angle (e.g., 30°) in the winding direction (counterclockwise in FIG. 7) or the unwinding direction (clockwise in FIG. 7) of the shade 2 relative to the winding member 3, and then the pair of recesses 35r of the outer tubular member 35 can be fitted into the corresponding protrusions 3p of the winding member 3. As a result, even if the amount of winding of the shade 2 on the winding member 3 changes depending on the thickness of the shade 2, the fixed position of the string on the spool 30 can be shifted (rotated) in the circumferential direction of the winding member 3, thereby reducing the difference between the amount of movement of the third string S3 unwound from the spool 30 by the rotation drive device 10 and the amount of movement of the shade 2.

[0064] Specifically, when the shade 2 is thick and the amount of the shade 2 wound around the winding member 3 is small, the fixed position of the third string S3 on the spool 30 can be shifted (rotated) in the winding direction of the shade 2 relative to the winding member 3 so that the third string S3 is slackened toward the second drum member 12. On the other hand, when the shade 2 is thin and the amount of the shade 2 wound around the winding member 3 is large, the fixed position of the third string S3 on the spool 30 can be shifted (rotated) in the unwinding direction of the shade 2 relative to the winding member 3 so that the third string S3 is pulled toward the spool 30. As a result, the shade device 1 can move the shade 2 appropriately and suppress an increase in the driving force required to open or close the shade 2, regardless of the thickness of the shade 2.

[0065] Furthermore, in the shade device 1, the spool 30 includes an outer cylindrical member 35 that forms an insertion portion that is inserted into the cylindrical winding member 3, and the position adjustment mechanism 90 includes a plurality of protrusions 3p provided on the winding member 3 and at least one recess 35r provided on the outer cylindrical member 35 of the spool 30 so as to fit with any of the plurality of protrusions 3p. This makes it possible to adjust the fixed position of the third string S3 on the spool 30 at fine intervals in the circumferential direction of the winding member 3, regardless of the rotational position (phase) of the winding member 3 that has wound up the shade 2. However, the position adjustment mechanism 90 may also include a plurality of recesses provided on the winding member 3 and at least one protrusion provided on the outer cylindrical member 35 of the spool 30 so as to fit with any of the plurality of recesses.

[0066] Furthermore, in the shade device 1, the position adjustment mechanism 90 includes a plurality of protrusions 3p formed at intervals in the circumferential direction on the inner peripheral surface of the winding member 3, and a pair of recesses 35r formed at 180° intervals on the outer cylindrical member 35 of the spool 30 so as to fit with one of the plurality of protrusions 3p. This makes it possible to adjust the fixed position of the third string S3 on the spool 30 at fine intervals in the circumferential direction of the winding member 3, while effectively suppressing twisting of the outer cylindrical member 35 of the spool 30 relative to the winding member 3 caused by the biasing force of the torsion spring 65 of the third slack absorbing mechanism 60. However, the position adjustment mechanism 90 may also include a pair of recesses formed at 180° intervals on the winding member 3, and a plurality of protrusions provided on the outer cylindrical member 35 of the spool 30 so as to fit with the pair of recesses.

[0067] In the shade device 1, the power transmission mechanism T may be omitted from the rotation drive device 10, and the motor M may be directly connected to the second drum member 12. Alternatively, the rotation drive device 10 may be configured so that the motor M rotates the first drum member 11. Furthermore, the third string S3 may be wound around the first drum member 11. Alternatively, one spool (winding member) 30 may be coaxially fixed to each end of the winding member 3 in the axial direction. In this case, the third string S3 fixed to one spool 30 may be wound around the second drum member 12, and the fourth string fixed to the other spool 30 may be wound around the first drum member 11. Furthermore, the shade device 1 is attached to the vehicle body F so as to be located below the sunroof SR or a fixed transparent roof of the vehicle V, but the present invention is not limited to this and may be provided on the rear window or side window of the vehicle V.

[0068] Furthermore, the invention of the present disclosure is not limited to the above-described embodiment, and various modifications can be made within the scope of the present disclosure. Furthermore, the above-described embodiment is merely one specific form of the invention described in the Summary of the Invention, and does not limit the elements of the invention described in the Summary of the Invention. [Industrial Applicability]

[0069] The invention of the present disclosure can be used in the vehicle shade device manufacturing industry and the like. [Explanation of symbols]

[0070] 1 vehicle shade device, 2 shade, 3 winding member, 3p convex portion, 4 shade bar, 4x internal space, 5L, 5R shoe (guide member), 5a first guide space (guide portion), 5s spring support portion, 10 rotation drive device (drive device), 11 first drum member, 12 second drum member, 30 spool, 33 shaft portion, 35 outer cylindrical member, 35r recess, 51 first slack absorption mechanism, 52 second slack absorption mechanism, 55 slider, 57 spring, 60 third slack absorption mechanism, 65 torsion spring, 90 position adjustment mechanism, 111, 121 winding groove, A1 first shaft center, A2 second shaft center, G1 first gear, G2 second gear, G3 third gear, S1 first string, S2 second string, S3 third string, V vehicle.

Claims

1. A vehicle shade device including a shade and a winding member for winding up the shade, the vehicle shade device being provided on a roof of a vehicle, a winding member attached to the winding member so as to rotate coaxially with and integrally with the winding member; a string having one end fixed to the winding member and wound around the winding member; a drive device that pulls the string to rotate the winding member and the take-up member in a winding direction of the shade; a position adjustment mechanism that enables adjustment of a fixed position of the string on the winding member in a circumferential direction of the winding member; A vehicle shade device.

2. The vehicle shade device according to claim 1, the winding member is a cylindrical body, the winding member includes an insertion portion that is inserted into the take-up member; The position adjustment mechanism includes a plurality of convex or concave portions provided on one of the insertion portions of the winding member and the wrapping member, and at least one concave or convex portion provided on the other of the insertion portions of the winding member and the wrapping member so as to fit into one of the plurality of convex or concave portions.

3. The vehicle shade device according to claim 2, The position adjustment mechanism is a shade device for a vehicle that includes a plurality of protrusions formed at intervals in the circumferential direction on the inner surface of the winding member, and a pair of recesses formed at 180° intervals in the insertion portion of the winding member so that each recess fits into one of the plurality of protrusions.

4. The vehicle shade device according to claim 2 or 3, The vehicle shade device further includes a slack absorption mechanism that is disposed inside the winding member and biases the winding member in a direction opposite to the winding direction of the shade.

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