Vehicle shade device

Abstract

To provide a vehicle shade device which can achieve compactification in a height direction and enables a movable range of a shade to be expanded easily.SOLUTION: A vehicle shade device of the disclosure is provided at a roof of a vehicle and includes: a shade; a take-up member which takes up the shade; a winding member which can rotate coaxially and integrally with the take-up member; a string which is fixed at one end to the winding member and wound around the winding member; and a drive device which draws the string to rotate the winding member and the take-up member in a shade winding direction.SELECTED DRAWING: Figure 2

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] Conventionally, a roll shade device including a shading sheet (shade), a winding roller around which the shading sheet is wound so as to be able to be wound up and pulled out, and a pair of guide frames is known (see, for example, Patent Document 1). In this roll shade device, a garnish (shade bar) extending along the edge of the pull-out side of the shading sheet is connected to the edge, and a runner portion that can slide back and forth along the corresponding guide frame is provided at both ends of the garnish. The runner portion is connected to a geared cable, and the geared cable meshes with a drive gear that is driven to rotate by a motor. In addition, the winding roller has a built-in biasing mechanism including a spring or the like, and the shading sheet is constantly biased toward the winding side by the biasing mechanism. When the motor is rotated in one direction, the geared cable moves the runner portion so as to separate from the winding roller. As a result, the shading sheet is pulled out from the winding roller against the biasing force from the biasing mechanism, and the shading sheet is in a fully closed state. When the motor is rotated in the reverse direction, the geared cable moves the runner so that it approaches the take-up roller, causing the light shielding sheet to be wound up by the take-up roller due to the biasing force from the biasing mechanism, and the light shielding sheet is brought into a fully open state. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-216124 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional roll shade device, the outer diameter of the winding roller becomes large due to the built-in biasing mechanism, making it difficult to reduce the height dimension, and thus the mountability is deteriorated. In addition, in the roll shade device, it is necessary to regulate the path of the geared cable by a guide frame, but since losses due to frictional resistance and the like increase, it becomes difficult to downsize the motor that drives the geared cable and make the entire device compact. Furthermore, when expanding the movable range (shading area) of the shading sheet, the size of the springs and the like of the biasing mechanism must be increased to relieve the stress of the springs and the like, and the mountability of the roll shade device is deteriorated due to the increase in size of the biasing mechanism and the winding roller.

[0005] Therefore, a primary object of the present disclosure is to provide a shade device for a vehicle that is compact in height and can easily expand the movable range of the shade. [Means for solving the problem]

[0006] The vehicle shade device disclosed herein includes a shade and a winding member that winds up the shade, and is mounted on the roof of the vehicle. The vehicle shade device includes a winding member that is coaxial with the winding member and can rotate integrally therewith, a string having one end fixed to the winding member and wound around the winding member, and a drive device that pulls the string to rotate the winding member and the winding member in the direction of winding up the shade.

[0007] The vehicle shade device of the present disclosure includes a winding member that is coaxial with and can rotate integrally with a winding member that winds up the shade. One end of a string such as a thin wire or thread is fixed to the winding member, and the string is wound around the winding member. In the vehicle shade device of the present disclosure, the string is pulled by a drive device to rotate the winding member and the winding member in the winding direction of the shade, so that the shade can be wound around the winding member and opened. This makes it possible to omit a biasing mechanism (retractor) that biases the shade in the winding direction from the winding member, and the diameter of the winding member can be reduced. In addition, by adopting a configuration in which the string is pulled to open the shade, the movable range of the shade is not limited by the constraints of the biasing mechanism. As a result, the vehicle shade device can be made compact in the height direction, improving the mountability of the vehicle shade device, and the movable range of the shade can be easily expanded. Furthermore, the omission of the biasing mechanism can reduce the weight and cost of the entire device. In addition, the structure for regulating the path of the string can be simplified compared to a geared cable, etc., which allows the entire device to be made more compact. Furthermore, the loss associated with driving the string is also reduced compared to a geared cable, etc., which makes it possible to prevent the drive device from becoming larger. [Brief description of the drawings]

[0008] [Figure 1] 1 is a perspective view showing a main part of a vehicle equipped with a vehicle shade device according to the present disclosure. [Diagram 2] 1 is an exploded perspective view showing a vehicle shade device according to the present disclosure; [Diagram 3] 1 is an enlarged cross-sectional view showing a vehicle shade device according to the present disclosure. [Figure 4] 1 is a schematic configuration diagram showing a vehicle shade device according to the present disclosure. [Diagram 5] 1 is a schematic configuration diagram showing a vehicle shade device according to the present disclosure. [Figure 6] 13 is a schematic configuration diagram showing another vehicle shade device of the present disclosure. FIG. [Figure 7]13 is a schematic configuration diagram showing another vehicle shade device of the present disclosure. FIG. [Figure 8] 13 is a schematic configuration diagram showing another vehicle shade device of the present disclosure. FIG. [Figure 9] 13 is a schematic diagram showing a configuration of still another vehicle shade device according to the present disclosure. FIG. [Figure 10] 13 is a schematic diagram showing a configuration of still another vehicle shade device according to the present disclosure. FIG. [Figure 11] 13 is a schematic configuration diagram showing another vehicle shade device of the present disclosure. FIG. [Figure 12] 13 is a schematic configuration diagram showing another vehicle shade device of the present disclosure. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Next, an embodiment of the present disclosure will be described with reference to the drawings.

[0010] FIG. 1 is a perspective view showing a vehicle V including a shade device for a vehicle (hereinafter simply referred to as a "shade device") 1 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.

[0011] 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 5, a pair (two) of guide members 6, and a drive device 10 for opening and closing the shade 2. The shade 2 is, for example, a rectangular light-shielding sheet made of cloth, and has an area sufficient to completely cover the light-transmitting parts of the movable panel Pm and the fixed panel Pf of the sunroof device SR. The shade 2 may also have heat-shielding properties.

[0012] The winding member 3 is a cylinder or columnar body having a relatively small outer diameter (for example, around 10 mm). The base end of the shade 2 is fixed (locked) to the outer circumferential surface of the winding member 3. In addition, a spool (winding member) 30 having, for example, a substantially truncated cone shape is coaxially fixed to each of the ends of both sides in the axial direction of the winding member 3. The pair (two) of spools 30 rotate simultaneously and integrally with the winding member 3. By rotating the winding member 3 and the pair of spools 30 around the axis in a predetermined winding direction, the shade 2 can be wound up on the winding member 3 and opened.

[0013] The shade bar 4 is formed, for example, by extrusion molding of an aluminum alloy or the like, and has, for example, a substantially C-shaped cross-sectional shape. The shade bar 4 is fixed to the tip end of the shade 2 (the end opposite to the base end fixed to the winding member 3). In this embodiment, a cylindrical part into which a rod is inserted is formed at the tip end of the shade 2. The cylindrical part and the rod are fitted into a shade holding groove formed in the shade bar 4, thereby fixing the shade bar 4 to the tip end of the shade 2. In this embodiment, each shoe 5 is formed, for example, from a resin containing potassium titanate fiber, and is fitted (fixed) to the corresponding end in the longitudinal direction of the shade bar 4.

[0014] Each guide member 6 is formed, for example, by extruding an aluminum alloy or the like, and has a uniform cross-sectional shape in the longitudinal direction. Each guide member 6 slidably supports the corresponding shoe 5 and the corresponding side end portion 20 (see FIG. 3) of the shade 2. The pair of guide members 6 are fixed to the housing 7 and the support member 8 via bolts or the like so as to extend parallel to each other with a gap corresponding to the width of the shade 2.

[0015] The housing 7 accommodates the drive unit 10. A pair of brackets (not shown) are fixed to the support member 8, which rotatably support shaft portions of the corresponding spools 30 via bearings (not shown). The housing 7 and the support member 8 are fixed to the vehicle body F below the sunroof device SR such 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-rear direction of the vehicle V. In this embodiment, the housing 7 is located on the front side of the vehicle V, and the support member 8 is located on the rear side of the vehicle V.

[0016] FIG. 3 is an enlarged cross-sectional view showing the shade 2, the shade bar 4, the shoe 5, and the guide member 6. As shown in the figure, solidified portions 21 are formed on both side end portions 20 in the width direction of the shade 2 (extension direction of the winding member 3 and the shade bar 4). The solidified portions 21 are formed by applying resin to the entire edge of the side end portion 20 or by attaching a sheet material such as resin, and have a higher strength than the remaining side end portion 20 (shade 2). The solidified portions 21 are folded back so as to cover the remaining side end portion 20 from above, and are sewn to the remaining side end portion 20 at least at one point in the longitudinal direction. In addition, the base portion 4b on the opposite side to the opening side of the shade bar 4 abuts against the upper surface of the shade 2.

[0017] As shown in FIG. 3, each shoe 5 includes a fitting portion 50 that fits into the end of the shade bar 4 in the corresponding axial direction, and a supported portion 51 that is slidably supported by the corresponding guide member 6. The supported portion 51 also has an insert portion (pilot portion) 52 that protrudes on the side opposite to the fitting portion 50. The insert portion 52 is a thin plate-like protruding piece that is narrower than the supported portion 51. When the fitting portion 50 is fitted into the end of the shade bar 4, the supported portion 51 of each shoe 5 protrudes outward from the shade bar 4, and the supported portion 51 and the insert portion 52 abut against the upper surface of the side end portion 20 of the shade 2. Furthermore, the insert portion 52 is inserted into the side end portion 20 of the folded back shade 2, i.e., below the solidified portion 21.

[0018] Each guide member 6 has a guide chamber 60 that extends in the longitudinal direction (the direction penetrating the paper in FIG. 3) and opens on one side in the width direction (the left-right direction in FIG. 3). The pair of guide members 6 are fixed to the housing 7 and the support member 8 so that the openings of the guide chambers 60 face each other. Furthermore, each guide member 6 has a first protrusion 61, a second protrusion 62, and a third protrusion 63 that extend in the longitudinal direction. The first protrusion 61 protrudes from the inner surface of the upper side of the guide member 6 that defines the guide chamber 60 and faces the inner surface of the lower side of the guide member 6 at a distance.

[0019] As a result, the guide chamber 60 is divided by the first protrusion 61 into a first chamber 60a on the opening side (left side in FIG. 3) and a second chamber 60b on the closed end side (right side in FIG. 3). The second protrusion 62 protrudes from the lower inner surface of the guide member 6 that defines the guide chamber 60 on the closed end side of the first protrusion 61, and faces the upper inner surface of the guide member 6 at a distance. The third protrusion 63 protrudes downward from the upper inner surface of the guide member 6 at the opening of the guide chamber 60, and faces the lower inner surface of the guide member 6 at a distance.

[0020] 3, the supported portion 51 (part of it) and the insert portion 52 of each shoe 5 are inserted into the guide chamber 60 of the corresponding guide member 6 together with the side end portion 20 of the shade 2. More specifically, the insert portion 52 and the side end portion 20 of the shade 2 are supported from above by the first protrusion 61, and are inserted into the second chamber 60b of the guide chamber 60 so that the insert portion 52 is supported from above by the first protrusion 61 and the tip of the side end portion 20, i.e., the solidified portion 21, abuts against the first protrusion 61 or the inner surface of the guide chamber 60. The side end portion 20 of the shade 2 is supported from below by the second protrusion 62 in the second chamber 60b.

[0021] Furthermore, (a part of) the supported portion 51 is disposed in the first chamber 60a of the guide chamber 60 together with the side end portion 20 of the shade 2, and is supported from above by the third protrusion 63. As a result, the supported portion 51 and the insertion portion 52 of each shoe 5 and the side end portion 20 of the shade 2 are slidably supported by the corresponding guide member 6. Also, the step portion formed on the supported portion 51 comes into contact with the third protrusion 63, thereby restricting the movement of the shoe 5 in the direction from the shade bar 4 toward the guide member 6.

[0022] The drive device 10 of the shade device 1 rotates the winding member 3 around its axis via a single first string S1, and moves the tip of the shade bar 4, i.e., the shade 2, away from the winding member 3 via a single second string S2. As shown in FIG. 1, the drive device 10 includes a single drum member 15, a single motor M, and a power transmission mechanism 16.

[0023] The first string S1 is a wire (made of metal) having an outer diameter of, for example, about 0.5-1.0 mm. However, the first string S1 may also be a thread or the like made of chemical fiber or the like. Both ends of the first string S1 are fixed (locked) to the corresponding spools 30, and the first string S1 is wound around each spool 30 in a direction opposite to the winding direction. Note that a spiral groove or a step extending in a spiral shape may be formed on the outer circumferential surface of each spool 30 so that the first string S1 is wound around the spool 30 evenly without tangling.

[0024] The center portion of the first string S1 is held by the drum member 15. The drum member 15 has a cylindrical outer peripheral surface and is rotatable around an axis A (see FIG. 4) extending in the vertical direction, for example. In this embodiment, the center portion of the first string S1 is inserted into the drum member 15 so as not to pass through the axis A, and is fixed to the drum member 15. Furthermore, one end side portion and the other end side portion of the first string S1 protrude outward from different positions on the outer peripheral surface of the drum member 15 so as to be wound onto the drum member 15 when the drum member 15 rotates around the axis A in a predetermined first direction.

[0025] The second string S2 is also a wire (made of metal) having an outer diameter of, for example, about 0.5-1.0 mm. However, the second string S2 may also be a thread formed of chemical fiber or the like. In this embodiment, the second string S2 is formed in a ring shape (loop shape). The second string S2 is slidably inserted from the drive device 10 side into the first chamber 60a (guide chamber 60) of one guide member 6 and the string passage 55 (see FIG. 3) formed in one of the pair of shoes 5, and further inserted into a space defined above the base portion 4b of the shade bar 4. In addition, the second string S2 inserted into the shade bar 4 is slidably inserted into the string passage 55 formed in the other of the pair of shoes 5 and the first chamber 60a (guide chamber 60) of the other guide member 6, and drawn out to the drive device 10 side. As a result, the single (annular) second string S2 is supported by the shade bar 4 and the pair of shoes 5 so as to be slidable in the width direction of the shade 2, and is connected to the tip of the shade 2 via the shade bar 4 etc.

[0026] Also, a part of the second string S2 is inserted into the drum member 15, for example, at a lower or upper side than the first string S1, so as not to pass through the axis A, and is fixed to the drum member 15. Furthermore, a part of the second string S2 extending from the drum member 15 toward one shoe 5 (one end of the shade bar 4) and a part of the second string S2 extending from the drum member 15 toward the other shoe 5 (the other end of the shade bar 4) protrude outward from different positions on the outer circumferential surface of the drum member 15 so as to be wound around the drum member 15 when the drum member 15 rotates around the axis A in a second direction opposite to the first direction. Note that a spiral groove or a step extending in a spiral shape may be formed on the outer circumferential surface of the drum member 15 so that each of the first and second strings S1 and S2 is wound around the drum member 15 evenly without tangling.

[0027] The motor M rotates the drum member 15 in the forward and reverse directions around the axis A via the power transmission mechanism 16. In this embodiment, the motor M is, for example, a brushed DC motor, and is controlled by a control device 100 (see FIG. 1). The control device 100 includes a microcomputer having a CPU, ROM, RAM, an input / output interface, and the like, and controls the motor M in response to the operation of a shade opening / closing switch (not shown) by a user. The power transmission mechanism 16 includes, for example, a reducer and a gear mechanism. However, the power transmission mechanism 16 may be omitted, and the motor M may be directly connected to the drum member 15. Furthermore, the shade device 1 includes a plurality of pulleys P (see FIG. 1) rotatably supported by a housing 7 or the like so as to regulate the paths of the corresponding first or second strings S1, S2.

[0028] Next, the operation of the above-mentioned shade device 1 will be described with reference to FIGS.

[0029] When the shade 2 is pulled out from the winding member 3 and at least partially closed, and a user issues a command to open the shade 2 (fully open or half open) via a shade opening / closing switch, the control device 100 controls the motor M of the drive device 10 to rotate the drum member 15 in the first direction (clockwise in FIG. 4) around the axis A, as shown in FIG. 4. When the drum member 15 rotates in the first direction, both the one end side and the other end side of the first string S1 are wound onto the drum member 15, and the second string S2 is unwound from the drum member 15 toward both the one shoe 5 and the other shoe 5, as shown in FIG.

[0030] As a result, the first string S1 is pulled toward the drum member 15, causing each spool 30 and the winding member 3 to rotate around the axis in the direction of winding the shade 2. Furthermore, as the second string S2 is unwound, the shade bar 4 is permitted to move toward the winding member 3. As a result, it is possible to open the shade 2 by moving the shade bar 4 toward the winding member 3 while pulling the first string S1 to wind the shade 2 onto the winding member 3.

[0031] On the other hand, when the shade 2 is wound up by the winding member 3 and at least partially open, and the user issues an instruction 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 drive device 10 to rotate the drum member 15 in the second direction (counterclockwise in FIG. 5) around the axis A, as shown in FIG. 5. When the drum member 15 rotates in the second direction, the first string S1 is unwound from the drum member 15 toward each spool 30, and both the portion of the second string S2 located between the drum member 15 and one shoe 5 and the portion of the second string S2 located between the drum member 15 and the other shoe 5 are wound onto the drum member 15, as shown in FIG.

[0032] As a result, the second string S2 is pulled towards the drum member 15, and the shade bar 4 moves away from the winding member 3. Then, in response to the movement of the shade bar 4, the shade 2 is pulled out from the winding member 3, and the winding member 3 and each spool 30 rotate about their axis in the unwinding direction of the shade 2. As a result, the second string S2 is pulled to close the shade 2, and both one end side and the other end side of the first string S1 can be wound around the corresponding spool 30 that rotates integrally with the winding member 3 in response to the pulling of the shade 2.

[0033] As described above, the shade device 1 includes two spools 30 as winding members that are coaxial with and can rotate integrally with the winding member 3 that winds up the shade 2. One end or the other end of a single first string S1 such as a thin wire or thread is fixed to each spool 30, and the first string S1 is wound around each spool 30. In the shade device 1, the drive device 10 pulls the first string S1 to rotate each spool 30 and the winding member 3 in the winding direction of the shade 2, thereby winding up the shade 2 onto the winding member 3 and opening it.

[0034] This makes it possible to omit the biasing mechanism (retractor) for biasing the shade 2 in the winding direction from the winding member 3, and the diameter of the winding member 3 can be significantly reduced. In addition, by adopting a configuration in which the first string S1 is pulled to open the shade 2, the movable range of the shade 2 is not limited by the constraints of the biasing mechanism (stress relaxation of a spring, etc.). As a result, the shade device 1 can be made compact in the height direction, improving the mountability of the shade device 1, and the movable range of the shade 2 can be easily expanded. Furthermore, the omission of the biasing mechanism makes it possible to reduce the weight and cost of the entire shade device 1. In addition, the structure for regulating the path of the first string S1 can be simplified compared to a geared cable, etc., and therefore the entire device can be made compact. Furthermore, the loss associated with the drive of the first string S1 is also reduced compared to a geared cable, etc., and therefore it is possible to suppress the increase in size of the drive device 10.

[0035] The shade device 1 also includes a second string S2 connected to the tip of the shade 2 via the shade bar 4, and the drive device 10 pulls the second string S2 to separate the tip of the shade 2 from the winding member 3. As a result, the shade 2 can be pulled out from the winding member 3 and closed by pulling the second string S2 with the drive device 10. Furthermore, the structure for regulating the path of the second string S2 can be simplified compared to a geared cable or the like, thereby making it possible to make the entire device more compact. In addition, the loss associated with driving the second string S2 is also reduced compared to a geared cable or the like, making it possible to suppress the increase in size of the drive device 10.

[0036] Furthermore, the shade device 1 includes, as winding members, two spools 30 each coaxially fixed to an end of the winding member 3 in the corresponding axial direction. Both ends of the first string S1 are fixed to the corresponding spools 30, and the first string S1 is wound around each spool 30. Furthermore, a shade bar 4 is fixed to the tip of the shade 2, and a second string S2 is connected to the shade 2 via the shade bar 4. This makes it possible to pull the first string S1 with the driving device 10 to stably rotate the winding member 3 in the winding direction of the shade 2, and to pull the second string S2 with the driving device 10 to separate the shade bar 4 from the winding member 3, thereby closing the shade 2.

[0037] However, in the shade device 1, the one first string S1 may be divided into two. That is, one end side of the two first strings S1 may be fixed and wound on the corresponding spool 30, and the other end of the two first strings S1 may be fixed to the drum member 15 so that both of the two first strings S1 are wound on the drum member 15 when the drum member 15 rotates in the first direction. In addition, the second string S2 does not necessarily have to be formed in a ring shape, and both ends of the one second string S2 may be fixed to the drum member 15. Furthermore, one end of the two second strings S2 may be fixed to the corresponding shoe 5 (end of the shade bar 4), and the other end of the two second strings S2 may be fixed to the drum member 15 so that both of the two second strings S2 are wound on the drum member 15 when the drum member 15 rotates in the second direction.

[0038] Moreover, the drive device 10 of the shade device 1 includes a single drum member 15 that is rotatable about an axis A, and a single motor M that rotates the drum member 15 in forward and reverse directions about the axis A. Furthermore, the first string S1 is wound around the drum member 15 when the drum member 15 rotates in a predetermined first direction. Moreover, the second string S2 is wound around the drum member 15 when the drum member 15 rotates in a second direction opposite to the first direction.

[0039] According to this drive device 10, by rotating a single drum member 15 in a first direction by a single motor M, it is possible to open the shade 2 by winding it up on the winding member 3 while allowing the shade bar 4 to move towards the winding member 3. Furthermore, by rotating a single drum member 15 in a second direction opposite to the first direction by a single motor M, it is possible to move the shade bar 4 away from the winding member 3 to close the shade 2, and to wind the first string S1 around each spool 30 that rotates in response to the pulling out of the shade 2. In addition, by using only one drum member 15 and one motor M, it is possible to reduce the number of parts of the drive device 10, thereby reducing costs, and to reduce the size and weight of the drive device 10 and, ultimately, the shade device 1.

[0040] Furthermore, in the shade device 1, each of the pair of guide members 6 has a guide chamber 60 that extends in the longitudinal direction and opens on one side in the width direction. Also, a part of the supported portion 51 of the pair of shoes 5 abuts against the upper surface of the corresponding side end portion 20 of the shade 2. Then, a part of the supported portion 51 and the side end portion 20 of the shade 2 are inserted into the guide chamber 60 of the corresponding guide member 6 and slidably supported by the guide member 6. In this way, by abutting a part of the shoe 5 (supported portion 51) against the upper surface of the side end portion 20 of the shade 2 and inserting it together with the side end portion 20 into a single guide chamber 60, the height dimension of the guide member 6 that slidably supports the shade 2 and the shoe 5 can be reduced. As a result, it is possible to make the shade device 1 compact in the height direction and improve the mountability of the shade device 1. In addition, in the shade device 1, a portion of the supported portion 51 of the pair of shoes 5 may be fitted (fixed) to the corresponding longitudinal end portion of the shade bar 4 so as to abut against the underside of the corresponding side end portion 20 of the shade 2.

[0041] Each shoe 5 has an insertion portion 52 that is inserted below the side end portion 20 of the folded shade 2, i.e., the solidified portion 21. Each guide member 6 has a first protrusion 61 that extends in the longitudinal direction and protrudes from the upper inner surface of the guide member 6 to face the lower inner surface of the guide member 6 at a distance. The guide chamber 60 is divided by the first protrusion 61 into a first chamber 60a on the opening side and a second chamber 60b on the closed end side, and the tip of the insertion portion 52 of the shoe 5 and the side end portion 20 of the shade 2 are inserted into the second chamber 60b so that the side end portion 20, i.e., the tip of the solidified portion 21, faces the first protrusion 61 side. This makes it possible to reduce the height dimension of the guide member 6 while holding the folded side end portion 20 of the shade 2 and the insertion portion 52 of the shoe 5 in the second chamber 60b whose entrance is narrowed by the first protrusion 61, and to effectively prevent the shade 2 and the shoe 5 from falling off in the width direction from each guide member 6. However, the insertion portion 52 does not necessarily need to be supported by the first protrusion 61, and may be spaced apart from the first protrusion 61. Furthermore, the tip of the solidification portion 21 does not necessarily need to abut against the first protrusion 61 or the inner surface that defines the second chamber 60b. In this case, the opening chamber 60 may be a single space that is not partitioned into the first chamber 60a and the second chamber 60b in which the first protrusion 61 is omitted. Moreover, the first protrusion 61 may protrude from the inner surface on the lower side of the guide member 6 and face the inner surface on the upper side of the guide member 6 at a distance.

[0042] Furthermore, each guide member 6 has a second protrusion 62 that extends in the longitudinal direction, protrudes from the inner surface of the lower side of the guide member 6 on the closed end side of the first protrusion 61, and faces the inner surface of the upper side of the guide member 6 at a distance. This makes it possible to reduce the dimension of each guide member 6 in the height direction, while restricting the movement of the shade 2 and the shoe 5 in the up-down direction (height direction) by the upper first protrusion 61 and the lower second protrusion 62, while reducing the frictional resistance between the guide member 6 and the shade 2 and the shoe 5. However, the second protrusion 62 may protrude from the inner surface of the upper side of the guide member 6 and face the inner surface of the lower side of the guide member 6 at a distance.

[0043] Furthermore, when a geared cable or the like is slidably supported by a guide member, it is necessary to fill the gap between the guide member and the geared cable or the like, but in the shade device 1, the lubricant is not required by adopting a configuration in which the shade 2 is opened and closed by pulling the first and second strings S1, S2. Therefore, supports for the geared cable or the like and partitions for suppressing contact between the shade 2 and the lubricant can be omitted from the guide member 6. As a result, it is possible to further reduce the dimension of the guide member 6 in the height direction.

[0044] Furthermore, the shade bar 4 is fixed to the tip of the shade 2, and each shoe 5 is fitted to the corresponding end of the shade bar 4. The shade bar 4 also forms a space through which the second string S2 is inserted. The second string S2 is inserted from the drive device 10 side into the space of the shade bar 4 through the first chamber 60a (guide chamber 60) of one guide member 6 and the string passage 55 formed in one shoe 5, and is drawn out to the drive device 10 side through the string passage 55 formed in the other shoe 5 and the first chamber 60a (guide chamber 60) of the other guide member 6. That is, in the shade device 1, a thin wire, thread, or the like can be used as the second string S2. Therefore, it is possible to arrange the second string S2 between the drive device 10 and the shade bar 4 through the guide chamber 60 and the string passage 55 of the shoe 5 while suppressing an increase in the size of the shoe 5 and the guide member 6. In the shade device 1, the second string S2 is inserted into the first chamber 60a of the guide member 6. This makes it difficult for the occupants of the vehicle V to see the second string S2, and effectively suppresses interference between the second string S2 and the side end portion 20 of the shade 2 inserted into the second chamber 60b, i.e., the tip of the solidified portion 21.

[0045] In the above embodiment, the second string S2 does not necessarily need to be inserted into the space of the shade bar 4 through the string passage 55 of the shoe 5, and may be inserted only into the first chamber 60a of the pair of shoes 5. In addition, in the above embodiment, 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 is not limited to this. In other words, the shade device 1 may be provided on the rear window or side window of the vehicle V.

[0046] 6 is a schematic diagram showing another shade device 1B of the present disclosure. Among the components of the shade device 1B, the same components as those of the above-mentioned shade device 1 are denoted by the same reference numerals, and duplicated explanations will be omitted.

[0047] The shade device 1B shown in FIG. 6 corresponds to the shade device 1 described above with one of the two spools 30 omitted. That is, in the shade device 1B, one spool (winding member) 30 is coaxially fixed to one end in the axial direction of the winding member 3. The other end in the axial direction of the winding member 3 is rotatably supported via a bearing (not shown) by a bracket 9 (see FIGS. 7 and 8) fixed to a support member 8. Furthermore, one end of the first string S1 is fixed (locked) to the spool 30, and the first string S1 is wound around the spool 30 in a direction opposite to the winding direction. The other end of the first string S1 is fixed (locked) to the drum member 15 so that the first string S1 is wound around the drum member 15 when the drum member 15 rotates around the axis A in a predetermined first direction.

[0048] When the shade 2 of the shade device 1B is at least partially closed and an instruction to open the shade 2 is given via the shade opening / closing switch, the control device 100 controls the motor M of the drive device 10 to rotate the drum member 15 in a predetermined first direction (clockwise in FIG. 7) around the axis A, as shown in FIG. 7. When the drum member 15 rotates in the first direction, the first string S1 is wound around the drum member 15, and the second string S2 is unwound from the drum member 15 toward both the one shoe 5 and the other shoe 5, as shown in FIG. 7. As a result, the first string S1 is pulled, and the spool 30 and the winding member 3 rotate around the axis in the winding direction of the shade 2. In addition, the movement of the shade bar 4 toward the winding member 3 is permitted in response to the unwinding of the second string S2. As a result, it is possible to open the shade 2 by moving the shade bar 4 toward the winding member 3 while pulling the first string S1 to wind the shade 2 around the winding member 3.

[0049] On the other hand, when the shade 2 of the shade device 1B is in a state where it is at least partially open, and an instruction to close the shade 2 is given via the shade opening / closing switch, the control device 100 controls the motor M of the drive device 10 to rotate the drum member 15 around the axis A in a second direction (counterclockwise in FIG. 8) opposite to the first direction, as shown in FIG. 8. When the drum member 15 rotates in the second direction, the first string S1 is unwound from the drum member 15 toward each spool 30, and both the portion of the second string S2 located between the drum member 15 and one shoe 5 and the portion of the second string S2 located between the drum member 15 and the other shoe 5 are wound up on the drum member 15, as shown in FIG. 8. As a result, the second string S2 is pulled toward the drum member 15, and the shade bar 4 is separated from the winding member 3. Then, in response to the movement of the shade bar 4, the shade 2 is pulled out from the winding member 3, and the winding member 3 and the spool 30 rotate about the axis in the unwinding direction of the shade 2. As a result, the second string S2 is pulled to close the shade 2, and the first string S1 can be wound around the spool 30, which rotates in response to the pulling out of the shade 2.

[0050] The shade device 1B may also be attached to the vehicle body F so as to be located below the sunroof SR or a fixed transparent roof of the vehicle V, or may be provided on the rear window or side window of the vehicle V.

[0051] 9 and 10 are schematic configuration diagrams showing still another shade device 1C of the present disclosure. Note that, among the components of the shade device 1C, the same components as those of the above-mentioned shade devices 1 and 1B are given the same reference numerals, and duplicated explanations will be omitted.

[0052] 9 and 10, the shade device 1C includes a drive device 10C that rotates the winding member 3 about an axis via a single first string S1 and moves the tip of the shade bar 4, i.e., the shade 2, away from the winding member 3 via a ring-shaped second string S2. The drive device 10C includes a first drum member 11, a second drum member 12, a single motor M, and a power transmission mechanism 17 as shown in the drawings.

[0053] In the shade device 1C, both ends of the first string S1 are fixed (locked) to the corresponding spools 30, and the first string S1 is wound around each spool 30 in a direction opposite to the winding direction. The center of the first string S1 is held by the first drum member 11. The first drum member 11 has a cylindrical outer peripheral surface and is rotatable around an axis A1 extending in the vertical direction, for example. In the shade device 1C, the center of the first string S1 is inserted into the first drum member 11 so as not to pass through the axis A1, and is fixed to the first drum member 11. Furthermore, one end side portion and the other end side portion of the first string S1 protrude outward from different positions on the outer peripheral surface of the first drum member 11 so as to be wound around the first drum member 11 when the first drum member 11 rotates around the axis A1 in a predetermined first pulling direction (clockwise in FIG. 9).

[0054] In the shade device 1C, the second string S2 is supported by the shade bar 4 and a pair of shoes 5 so as to be slidable in the width direction of the shade 2, and is connected to the tip of the shade 2 via the shade bar 4. A part of the second string S2 is held by a second drum member 12. The second drum member 12 has a cylindrical outer circumferential surface and is rotatable around an axis A2 extending in the vertical direction, for example. In the shade device 1C, a part of the second string S2 is inserted through the second drum member 12 so as not to pass through the axis A2, and is fixed to the second drum member 12. Furthermore, the portion of the second string S2 extending from the second drum member 12 toward one shoe 5 and the portion of the second string S2 extending from the second drum member 12 toward the other shoe 5 protrude outward from different positions on the outer peripheral surface of the second drum member 12 so as to be wound onto the second drum member 12 when the second drum member 12 rotates around the axis A2 in a predetermined second pulling direction (clockwise in Figure 10).

[0055] The motor M of the drive device 10C rotates the first and second drum members 11, 12 in forward and reverse directions around the axis A1 or A2 via the power transmission mechanism 17, and is controlled by the control device 100. The power transmission mechanism 17 supports the first and second drum members 11, 12 so that they are adjacent to each other and extend parallel to each other, and rotates the first and second drum members 11, 12 in reverse directions by the power from the motor M. Furthermore, the shade device 1 includes a plurality of pulleys P rotatably supported by the housing 7 or the like so as to regulate the paths of the corresponding first or second strings S1, S2.

[0056] When the shade 2 of the shade device 1C is at least partially closed and an instruction to open the shade 2 is given via the shade opening / closing switch, the control device 100 controls the motor M of the drive device 10C to rotate the first drum member 11 around the axis A1 in the first pulling direction (clockwise in FIG. 9) and rotate the second drum member 12 around the axis A2 in the opposite direction to the second pulling direction (counterclockwise in FIG. 9), as shown in FIG. 9. When the first drum member 11 rotates in the first pulling direction, both the one end side portion and the other end side portion of the first string S1 are wound up on the first drum member 11. When the second drum member 12 rotates in the opposite direction to the second pulling direction, the second string S2 is unwound from the second drum member 12 toward both the one shoe 5 and the other shoe 5. As a result, the first string S1 is pulled toward the first drum member 11, causing each spool 30 and the winding member 3 to rotate around the axis in the direction in which the shade 2 is wound. Additionally, the movement of the shade bar 4 toward the winding member 3 is permitted in response to the unwinding of the second string S2. As a result, it becomes possible to open the shade 2 by moving the shade bar 4 toward the winding member 3 while pulling the first string S1 to wind the shade 2 onto the winding member 3.

[0057] On the other hand, when the shade 2 of the shade device 1C is at least partially open and an instruction to close the shade 2 is given via the shade opening / closing switch, the control device 100 controls the motor M of the drive device 10C to rotate the first drum member 11 around the axis A1 in the direction opposite to the first pulling direction (counterclockwise in FIG. 10) and rotate the second drum member 12 around the axis A2 in the second pulling direction (clockwise in FIG. 10), as shown in FIG. 10. When the first drum member 11 rotates in the direction opposite to the first pulling direction, the first string S1 is unwound from the first drum member 11 toward each spool 30. When the second drum member 12 rotates in the second pulling direction, both the part of the second string S2 located between the second drum member 12 and one shoe 5 and the part of the second string S2 located between the second drum member 12 and the other shoe 5 are wound onto the second drum member 12. As a result, the second string S2 is pulled towards the second drum member 12, and the shade bar 4 moves away from the winding member 3. Then, in response to the movement of the shade bar 4, the shade 2 is pulled out from the winding member 3, and the winding member 3 and each spool 30 rotate about their axis in the unwinding direction of the shade 2. As a result, it becomes possible to pull the second string S2 to close the shade 2, and to wind both one end side and the other end side of the first string S1 around the corresponding spool 30 that rotates in response to the pulling out of the shade 2.

[0058] Furthermore, according to the drive device 10C, the first drum member 11 corresponding to the winding member 3 and the second drum member 12 corresponding to the shade bar 4 can each be made low-profile, making it possible to make the shade device 1C even more compact in the height direction. Also, by using only one motor M, the number of parts in the drive device 10C can be reduced, thereby reducing costs.

[0059] The shade device 1C is not limited to being disposed below the sunroof SR of the vehicle V, and may be provided on the rear window or side window of the vehicle V. The shade device 1C may also include a single spool 30 that is coaxial with the winding member 3 and can rotate integrally therewith, and one first string S1 having one end fixed to the spool 30. Depending on the manner in which the first string S1 and the second string S2 are wound around the first or second drum member 11, 12, the power transmission mechanism 17 may be configured to rotate the first and second drum members 11, 12 in the same direction as each other by the power from the motor M. In the shade device 1C, the second string S2 is not necessarily formed in a ring shape, and both ends of one second string S2 may be fixed to the second drum member 12. Furthermore, one end of each of the two second strings S2 may be fixed to a corresponding shoe 5 (end of the shade bar 4), and the other end of each of the two second strings S2 may be fixed to the second drum member 12 so that both of the two second strings S2 are wound onto the second drum member 12 when the second drum member 12 rotates in the second pulling direction.

[0060] 11 and 12 are schematic diagrams showing another shade device 1D of the present disclosure. Among the components of the shade device 1D, the same elements as those of the above-mentioned shade devices 1, 1B, and 1C are given the same reference numerals and redundant explanations are omitted.

[0061] 11 and 12, the shade device 1D includes a drive device 10D that rotates the winding member 3 around an axis via a single first string S1 and moves the tip of the shade bar 4, i.e., the shade 2, away from the winding member 3 via a ring-shaped second string S2. As shown in the figures, the drive device 10D includes a first drum member 11, a second drum member 12, a first motor M1, a second motor M2, a first power transmission mechanism 13, and a second power transmission mechanism 14.

[0062] In the shade device 1D, when the first drum member 11 rotates about the axis A1 in a predetermined first pulling direction (counterclockwise in FIG. 11), both one end portion and the other end portion of the first string S1 are wound onto the first drum member 11. When the second drum member 12 rotates about the axis A2 in a predetermined second pulling direction (clockwise in FIG. 12), a portion of the second string S2 located between the second drum member 12 and one shoe 5 (one end portion of the shade bar 4) and a portion of the second string S2 located between the second drum member 12 and the other shoe 5 (the other end portion of the shade bar 4) are wound onto the second drum member 12.

[0063] The first motor M1 is, for example, a brushed DC motor controlled by the control device 100, and rotates the first drum member 11 in the forward and reverse directions around the axis A1 via the first power transmission mechanism 13. The second motor M2 is, for example, a brushed DC motor controlled by the control device 100, and rotates the second drum member 12 in the forward and reverse directions around the axis A2 via the second power transmission mechanism 14. The first and second power transmission mechanisms 13 and 14 include, for example, a reducer or a gear mechanism. However, the first and second power transmission mechanisms 13 and 14 may be omitted, and the first and second motors M1 and M2 may be directly connected to the corresponding first or second drum members 11 and 12. Furthermore, the shade device 1 includes a plurality of pulleys P rotatably supported by the housing 7 or the like so as to regulate the paths of the corresponding first or second strings S1 and S2.

[0064] When the shade 2 of the shade device 1D is at least partially closed and an instruction to open the shade 2 is given via the shade opening / closing switch, the control device 100 controls the first motor M1 of the drive device 10D to rotate the first drum member 11 around the axis A1 in the first pulling direction (counterclockwise in FIG. 11) as shown in FIG. 11, and controls the second motor M2 of the drive device 10D to rotate the second drum member 12 around the axis A2 in the opposite direction to the second pulling direction (counterclockwise in FIG. 11). When the first drum member 11 rotates in the first pulling direction, both the one end side portion and the other end side portion of the first string S1 are wound up on the first drum member 11. When the second drum member 12 rotates in the opposite direction to the second pulling direction, the second string S2 is unwound from the second drum member 12 toward both the one shoe 5 and the other shoe 5. As a result, the first string S1 is pulled toward the first drum member 11, causing each spool 30 and the winding member 3 to rotate around the axis in the direction in which the shade 2 is wound. Additionally, the movement of the shade bar 4 toward the winding member 3 is permitted in response to the unwinding of the second string S2. As a result, it becomes possible to open the shade 2 by moving the shade bar 4 toward the winding member 3 while pulling the first string S1 to wind the shade 2 onto the winding member 3.

[0065] On the other hand, when the shade 2 of the shade device 1D is at least partially open and an instruction to close the shade 2 is given via the shade opening / closing switch, the control device 100 controls the first motor M1 of the drive device 10D to rotate the first drum member 11 around the axis A1 in the direction opposite to the first pulling direction (clockwise in FIG. 12) as shown in FIG. 12, and controls the second motor M2 of the drive device 10D to rotate the second drum member 12 around the axis A2 in the second pulling direction (clockwise in FIG. 12). When the first drum member 11 rotates in the direction opposite to the first direction, the first string S1 is unwound from the first drum member 11 toward each spool 30. When the second drum member 12 rotates in the second pulling direction, both the part of the second string S2 located between the second drum member 12 and one shoe 5 and the part of the second string S2 located between the second drum member 12 and the other shoe 5 are wound onto the second drum member 12. As a result, the second string S2 is pulled towards the second drum member 12, and the shade bar 4 moves away from the winding member 3. Then, in response to the movement of the shade bar 4, the shade 2 is pulled out from the winding member 3, and the winding member 3 and each spool 30 rotate about their axis in the unwinding direction of the shade 2. As a result, it becomes possible to pull the second string S2 to close the shade 2, and to wind both one end side and the other end side of the first string S1 around the corresponding spool 30 that rotates in response to the pulling out of the shade 2.

[0066] Furthermore, according to the drive device 10D, the first drum member 11 corresponding to the winding member 3 and the second drum member 12 corresponding to the shade bar 4 can each be made low-profile, making it possible to make the shade device 1D even more compact in the height direction. Also, with the drive device 10D, the rotation speeds of the first and second motors M1, M2 are adjusted when the shade 2 is opened or closed, thereby effectively preventing the shade 2 from becoming loose.

[0067] The shade device 1D is not limited to being disposed below the sunroof SR of the vehicle V, and may be provided on the rear window or side window of the vehicle V. The shade device 1D may also include a single spool 30 that is coaxial with the winding member 3 and can rotate integrally therewith, and one first string S1 having one end fixed to the spool 30. Furthermore, in the shade device 1D, the second string S2 does not necessarily have to be formed in a ring shape, and both ends of the single second string S2 may be fixed to the second drum member 12. One end of each of the two second strings S2 may be fixed to the corresponding shoe 5 (end of the shade bar 4), and the other end of each of the two second strings S2 may be fixed to the second drum member 12 so that both of the two second strings S2 are wound on the second drum member 12 when the second drum member 12 rotates in the second pulling direction.

[0068] The present disclosure is not limited to the above embodiment, and various modifications can be made within the scope of the present disclosure. Furthermore, the above embodiment is merely a 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, 1B, 1C, 1D shade device for vehicle, 2 shade, 20 side end portion, 21 solidification portion, 3 winding member, 30 spool, 4 shade bar, 5 shoe, 50 fitting portion, 51 supported portion, 52 insertion portion, 55 string passage, 6 guide member, 60 guide chamber, 60a first chamber, 60b second chamber, 61 first protrusion, 62 second protrusion, 10, 10B, 10C, 10D drive device, 11 first drum member, 12 second drum member, 15 drum member, A, A1, A2 shaft center, M motor, M1 first motor, M2 second motor, S1 first string, S2 second string, SR sunroof device, V vehicle.

Claims

1. A shade device for a vehicle, comprising a shade and a winding member for winding up the shade, the shade device being provided on a roof of a vehicle, a winding member that is coaxial with and integrally rotatable 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 shade device for a vehicle.

2. The vehicle shade device according to claim 1, A second string is connected to the tip of the shade, The drive device pulls the second string to move the tip of the shade away from the winding member.

3. The vehicle shade device according to claim 2, A shade device for a vehicle, in which, when the drive device pulls the second string to move the tip of the shade away from the winding member, the first string is wound around the winding member, which rotates integrally with the winding member in response to the movement of the tip of the shade.

4. The vehicle shade device according to claim 2, the winding member includes at least one spool coaxially secured to a corresponding axial end of the take-up member; The one end of the string is fixed to the spool and the string is wound around the spool; A shade bar is fixed to the tip of the shade, The second string is connected to the shade via the shade bar.

5. The vehicle shade device according to any one of claims 2 to 4, The drive device includes a single drum member that is rotatable about an axis, and a motor that rotates the drum member in forward and reverse directions about the axis, the string is wound onto the drum member as the drum member rotates in a first predetermined direction; The second string is wound around the drum member when the drum member rotates in a second direction opposite to the first direction.

6. The vehicle shade device according to any one of claims 2 to 4, The drive device includes a first drum member rotatable about a first axis, a second drum member rotatable about a second axis, and a single motor for rotating the first and second drum members in the same direction or opposite directions and in forward and reverse directions about the first or second axis, the string is wound onto the first drum member as the first drum member rotates in a first predetermined tension direction; The second string is wound onto the second drum member when the second drum member rotates in a second predetermined pulling direction.

7. The vehicle shade device according to any one of claims 2 to 4, The drive device includes a first drum member rotatable about a first axis, a second drum member rotatable about a second axis, a first motor that rotates the first drum member in forward and reverse directions about the first axis, and a second motor that rotates the second drum member in forward and reverse directions about the second axis, the string is wound onto the first drum member as the first drum member rotates in a first predetermined tension direction; The second string is wound onto the second drum member when the second drum member rotates in a second predetermined pulling direction.

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