JP2025008331A - Shade device for vehicle - Google Patents

Abstract

[Problem] To provide a shade device for a vehicle that can be made compact in the height direction and can easily expand the movable range of the shade. [Solution] The vehicle shade device disclosed herein is mounted on the roof of a vehicle and includes a shade, a winding member that winds up the shade, a winding member that is coaxial with the winding member and can rotate integrally with the winding member, a string that has one end fixed to the winding member and is 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. [Selected Figure] Figure 2

Description

This disclosure relates to a vehicle shade device that is installed on the roof of a vehicle.

Conventionally, a roll shade device is known that includes a light-shielding sheet (shade), a winding roller around which the light-shielding sheet is wound so that it can be wound up and pulled out, and a pair of guide frames (see, for example, Patent Document 1). In this roll shade device, a garnish (shade bar) that extends along the edge of the light-shielding sheet on the pull-out side is connected to the edge, and runners that can slide back and forth along the corresponding guide frames are provided at both ends of the garnish. The runners are 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 that includes a spring, etc., and the light-shielding 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 runners so that they are separated from the winding roller. As a result, the light-shielding sheet is pulled out from the winding roller against the biasing force from the biasing mechanism, and the light-shielding sheet is in a fully closed state. Furthermore, when the motor is rotated in the reverse direction, the runner section moves so that the geared cable approaches the winding roller. This causes the shading sheet to be wound up on the winding roller by the force of the biasing mechanism, and the shading sheet is in a fully open state.

JP 2013-216124 A

However, in the conventional roll shade device, the incorporation of the biasing mechanism increases the outer diameter of the winding roller, making it difficult to reduce the height dimension, and thus reducing mountability. In addition, in the roll shade device, it is necessary to regulate the path of the geared cable using a guide frame, but this increases losses due to frictional resistance, etc., making it 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, etc. of the biasing mechanism must be increased to relieve the stress of the springs, etc., and the size of the biasing mechanism and therefore the winding roller must be increased, resulting in a deterioration in mountability of the roll shade device.

Therefore, the primary objective of this disclosure is to provide a vehicle shade device that is compact in height and can easily expand the movable range of the shade.

The vehicle shade device disclosed herein includes a shade and a winding member for winding 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 that is fixed at one end 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.

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 the 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 string's path can be simplified compared to geared cables, etc., which allows the entire device to be made more compact. Furthermore, the loss associated with driving the string is also reduced compared to geared cables, etc., making it possible to prevent the drive device from becoming larger.

1 is a perspective view showing a main part of a vehicle equipped with a vehicle shade device according to the present disclosure. 1 is an exploded perspective view showing a vehicle shade device according to the present disclosure; 1 is an enlarged cross-sectional view showing a vehicle shade device according to the present disclosure. 1 is a schematic configuration diagram showing a vehicle shade device according to the present disclosure. 1 is a schematic configuration diagram showing a vehicle shade device according to the present disclosure. 13 is a schematic configuration diagram showing another vehicle shade device of the present disclosure. FIG. 13 is a schematic configuration diagram showing another vehicle shade device of the present disclosure. FIG. 13 is a schematic configuration diagram showing another vehicle shade device of the present disclosure. FIG. 13 is a schematic diagram showing a configuration of still another vehicle shade device according to the present disclosure. FIG. 13 is a schematic diagram showing a configuration of still another vehicle shade device according to the present disclosure. FIG. 13 is a schematic configuration diagram showing another vehicle shade device of the present disclosure. FIG. 13 is a schematic configuration diagram showing another vehicle shade device of the present disclosure. FIG.

Next, the form for implementing the invention of this disclosure will be described with reference to the drawings.

Figure 1 is a perspective view showing a vehicle V including a vehicle shade device (hereinafter simply referred to as "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 the transparent movable panel Pm and the 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.

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 that can completely cover the light-transmitting portions of the movable panel Pm and the fixed panel Pf of the sunroof device SR. The shade 2 may also have heat-shielding properties.

The winding member 3 is a cylinder or columnar body with 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, for example, having a substantially truncated cone shape, is fixed coaxially to each of the ends of the winding member 3 in the axial direction. The pair (two) 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.

The shade bar 4 is formed, for example, by extruding 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 of the shade 2 (the end opposite the base end fixed to the winding member 3). In this embodiment, a cylindrical portion is formed at the tip of the shade 2 into which a rod is inserted. The cylindrical portion and the rod are fitted into a shade retaining groove formed in the shade bar 4, thereby fixing the shade bar 4 to the tip 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.

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 that they extend parallel to each other with a gap corresponding to the width of the shade 2.

The housing 7 houses the drive unit 10. A pair of brackets (not shown) are fixed to the support member 8, which rotatably support the shafts 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, 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-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.

Figure 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.

As shown in FIG. 3, each shoe 5 includes an engagement portion 50 that is engaged with the corresponding axial end of the shade bar 4, and a supported portion 51 that is supported by the corresponding guide member 6 so as to be slidable. The supported portion 51 also has an insertion portion (pilot portion) 52 that protrudes on the side opposite to the engagement portion 50. The insertion portion 52 is a thin plate-like protruding piece that is narrower than the supported portion 51. When the engagement portion 50 is engaged with 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 insertion portion 52 abut against the upper surface of the side end portion 20 of the shade 2. Furthermore, the insertion portion 52 is inserted into the side end portion 20 of the folded shade 2, i.e., below the solidification portion 21.

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.

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.

As shown in FIG. 3, the supported portion 51 (part of it) and the insertion 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 insertion portion 52 and the side end portion 20 of the shade 2 are inserted into the second chamber 60b of the guide chamber 60 so that the insertion 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.

Furthermore, the supported portion 51 (part of it) 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 supported slidably by the corresponding guide member 6. Furthermore, 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.

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.

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 made of chemical fibers 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 the opposite direction to the winding direction. The outer circumferential surface of each spool 30 may be formed with a spiral groove or a step extending in a spiral shape so that the first string S1 is wound evenly around the spool 30 without getting tangled.

The center 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) that extends in the vertical direction, for example. In this embodiment, the center 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.

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 fibers 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 unit 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 the 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 unit 10 side. As a result, the single (annular) second string S2 is supported by the shade bar 4 and a pair of shoes 5 so that it can slide freely in the width direction of the shade 2, and is connected to the tip of the shade 2 via the shade bar 4, etc.

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, the part of the second string S2 extending from the drum member 15 toward one shoe 5 (one end of the shade bar 4) and the 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 on the drum member 15 when the drum member 15 rotates around the axis A in a second direction opposite to the first direction. In addition, 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 evenly on the drum member 15 without entanglement.

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, etc., and controls the motor M in response to the user's operation of a shade opening/closing switch (not shown). The power transmission mechanism 16 also 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 path of the corresponding first or second string S1, S2.

Next, the operation of the above-mentioned shade device 1 will be described with reference to Figures 4 and 5.

When the shade 2 is pulled out from the winding member 3 and at least partially closed, and the user issues an instruction 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 drive device 10 to rotate the drum member 15 around the axis A in the first direction (clockwise in FIG. 4) 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. 4.

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. 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.

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 the shade 2 (fully or half-closed) 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 the second direction (counterclockwise in FIG. 5), as shown in FIG. 5. When the drum member 15 rotates in the second direction, as shown in FIG. 5, 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 a result, the second string S2 is pulled toward the drum member 15, and the shade bar 4 moves away from the winding member 3. Then, as the shade bar 4 moves, the shade 2 is pulled out from the winding member 3, and the winding member 3 and each spool 30 rotate around their axis in the direction in which the shade 2 is unwound. As a result, the second string S2 is pulled to close the shade 2, and both the one end and the other end of the first string S1 can be wound around the corresponding spool 30 that rotates together with the winding member 3 as the shade 2 is pulled out.

As described above, the shade device 1 includes two spools 30 as winding members that are coaxial with and can rotate together with the winding member 3 that winds up the shade 2. One end or the other end of a 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 the shade 2 around the winding member 3 and opening it.

This makes it possible to omit the biasing mechanism (retractor) that biases 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 making it possible to easily expand the movable range of the shade 2. Furthermore, by omitting the biasing mechanism, the entire shade device 1 can be made lighter and less expensive. In addition, the structure for regulating the path of the first string S1 can be simplified compared to a geared cable, etc., and the entire device can be made compact. Furthermore, the loss associated with driving the first string S1 is also reduced compared to a geared cable, etc., making it possible to suppress the increase in size of the drive device 10.

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 move the tip of the shade 2 away from the winding member 3. This allows the drive device 10 to pull the second string S2, thereby drawing the shade 2 out from the winding member 3 and closing it. Furthermore, the structure for regulating the path of the second string S2 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 second string S2 is also reduced compared to a geared cable, etc., making it possible to prevent the drive device 10 from becoming larger.

The shade device 1 further includes, as winding members, two spools 30 each coaxially fixed to the 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. A shade bar 4 is fixed to the tip of the shade 2, and the second string S2 is connected to the shade 2 via the shade bar 4. This allows the drive device 10 to pull the first string S1 to stably rotate the winding member 3 in the winding direction of the shade 2, and the drive device 10 to pull the second string S2 to move the shade bar 4 away from the winding member 3, thereby closing the shade 2.

However, in the shade device 1, the single 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 single 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.

The drive device 10 of the shade device 1 includes a single drum member 15 that is rotatable around the axis A, and a single motor M that rotates the drum member 15 in forward and reverse directions around the axis A. The first string S1 is wound around the drum member 15 when the drum member 15 rotates in a predetermined first direction. 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.

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 toward the winding member 3. In addition, 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 a single drum member 15 and a single 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, in turn, the shade device 1.

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 of the shade bar 4 so as to abut the underside of the corresponding side end 20 of the shade 2.

Each shoe 5 has an insertion portion 52 that is inserted below the side end 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 20 of the shade 2 are inserted into the second chamber 60b so that the tip of the side end 20, i.e., the solidified portion 21, faces the first protrusion 61. This makes it possible to reduce the height dimension of the guide member 6 while holding the folded side end 20 of the shade 2 and the insertion part 52 of the shoe 5 in the second chamber 60b whose entrance is narrowed by the first protrusion 61, and effectively suppress the shade 2 and the shoe 5 from falling off in the width direction from each guide member 6. However, the insertion part 52 does not necessarily need to be supported by the first protrusion 61, and may be separated from the first protrusion 61. Furthermore, the tip of the solidification part 21 does not necessarily need to abut 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 divided into the first chamber 60a and the second chamber 60b, in which the first protrusion 61 is omitted. In addition, the first protrusion 61 may protrude from the inner surface of the lower side of the guide member 6 and face the inner surface of the upper side of the guide member 6 at a distance.

Furthermore, each guide member 6 has a second protrusion 62 that extends in the longitudinal direction and protrudes from the lower inner surface of the guide member 6 on the closed end side of the first protrusion 61 and faces the upper inner surface of the guide member 6 at a distance. This makes it possible to reduce the height dimension of each guide member 6, while restricting the movement of the shade 2 and 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 shoe 5. However, the second protrusion 62 may also protrude from the upper inner surface of the guide member 6 and face the lower inner surface of the guide member 6 at a distance.

In addition, 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; however, in the shade device 1, the use of a configuration in which the shade 2 is opened and closed by pulling the first and second strings S1, S2 makes lubricant unnecessary. Therefore, supports for the geared cable or the like, and partitions for preventing contact between the shade 2 and the lubricant, etc. can be omitted from the guide member 6. As a result, it is possible to further reduce the height dimension of the guide member 6.

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. Furthermore, 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 or thread 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 the size increase of the shoe 5 and the guide member 6. In addition, 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, i.e., the tip of the solidified portion 21, which is inserted into the second chamber 60b.

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, but 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.

Figure 6 is a schematic diagram showing another shade device 1B of the present disclosure. Note that among the components of the shade device 1B, the same elements as those of the shade device 1 described above are given the same reference numerals, and duplicated explanations will be omitted.

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 FIG. 7 and FIG. 8) fixed to the 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 the opposite direction 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.

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 pulling the first string S1 and winding the shade 2 onto the winding member 3 while moving the shade bar 4 toward the winding member 3.

On the other hand, when the shade 2 of the shade device 1B 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 onto 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, as the shade bar 4 moves, the shade 2 is pulled out from the winding member 3, and the winding member 3 and the spool 30 rotate around the axis in the direction in which the shade 2 is pulled out. 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 as the shade 2 is pulled out.

The shade device 1B may also be attached to the vehicle body F so as to be positioned 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.

Figures 9 and 10 are schematic diagrams showing yet another shade device 1C of the present disclosure. Note that among the components of the shade device 1C, the same elements as those of the shade devices 1 and 1B described above are given the same reference numerals, and duplicated explanations will be omitted.

As shown in Figures 9 and 10, the shade device 1C includes a drive device 10C that 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 ring-shaped second string S2. As shown in the figures, 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.

In the shade device 1C, both ends of the first string S1 are fixed (engaged) to the corresponding spools 30, and the first string S1 is wound around each spool 30 in the opposite direction 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, the 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).

In addition, 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, etc. Furthermore, a portion of the second string S2 is held by the second drum member 12. The second drum member 12 has a cylindrical outer peripheral surface, and is rotatable, for example, around an axis A2 extending in the vertical direction. In the shade device 1C, a portion of the second string S2 is inserted into 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 circumferential 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 FIG. 10).

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 using 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.

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 and the other end side 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. 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 onto the winding member 3.

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 toward the second drum member 12, and the shade bar 4 moves away from the winding member 3. Then, as the shade bar 4 moves, the shade 2 is pulled out from the winding member 3, and the winding member 3 and each spool 30 rotate around their axis in the direction in which the shade 2 is unwound. As a result, the second string S2 is pulled to close the shade 2, and both the one end and the other end of the first string S1 can be wound around the corresponding spool 30 that rotates as the shade 2 is pulled out.

Furthermore, the drive device 10C allows the first drum member 11 corresponding to the winding member 3 and the second drum member 12 corresponding to the shade bar 4 to be made lower in height, 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, leading to lower costs.

The shade device 1C is not limited to being disposed under the sunroof SR of the vehicle V, but 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 whose one end is fixed to the spool 30. Furthermore, depending on the winding manner of the first string S1 and the second string S2 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 by the power from the motor M. In the shade device 1C, 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. Furthermore, 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 onto the second drum member 12 when the second drum member 12 rotates in the second pulling direction.

Figures 11 and 12 are schematic diagrams showing another shade device 1D of the present disclosure. Note that 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 duplicated explanations are omitted.

As shown in Figures 11 and 12, the shade device 1D includes a drive device 10D that 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 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.

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

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.

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. 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 onto the winding member 3.

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 toward the second drum member 12, and the shade bar 4 moves away from the winding member 3. Then, as the shade bar 4 moves, the shade 2 is pulled out from the winding member 3, and the winding member 3 and each spool 30 rotate around their axis in the direction in which the shade 2 is unwound. As a result, the second string S2 is pulled to close the shade 2, and both the one end and the other end of the first string S1 can be wound around the corresponding spool 30 that rotates as the shade 2 is pulled out.

Furthermore, with the drive unit 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 unit 1D even more compact in the height direction. In addition, with the drive unit 10D, the rotation speeds of the first and second motors M1, M2 can be adjusted when the shade 2 is opened or closed, thereby effectively suppressing the occurrence of slack in the shade 2.

The shade device 1D is not limited to being disposed under the sunroof SR of the vehicle V, but may be disposed 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, one end of which is 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.

The invention disclosed herein is in no way limited to the above embodiment, and it goes without saying that various modifications can be made within the scope of the present disclosure. Furthermore, the above embodiment is merely one specific form of the invention described in the Summary of the Invention section, and does not limit the elements of the invention described in the Summary of the Invention section.

The invention disclosed herein can be used in the vehicle shade device manufacturing industry, etc.

1, 1B, 1C, 1D shade device for vehicle, 2 shade, 20 side end, 21 solidification part, 3 winding member, 30 spool, 4 shade bar, 5 shoe, 50 fitting part, 51 supported part, 52 insertion part, 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 (7)

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. 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. 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. 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. 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. 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. 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.