JP6018784B2 - Roll shade device - Google Patents

Description

  The present invention relates to a roll shade device provided in a vehicle.

2. Description of the Related Art Conventionally, as a roll shade device, a screen disposed under a translucent panel that closes a roof opening formed in a roof of a vehicle, and a screen disposed in a left-right direction below a rear end side of the translucent panel. There is a roll shade device provided with a take-up shaft for winding up (see Patent Document 1).
In the roll shade device, the rear end side of the screen is fixed to the take-up shaft, and the front portion of the screen is movable in the front-rear direction on guide rails arranged below the left and right sides of the translucent panel. A supported front member is provided.

The winding shaft is formed in a straight line in the left-right direction, and winding reels are provided on the left and right sides of the winding shaft so as to be integrally rotatable.
One end of a cable is attached and fixed to each of the right and left take-up reels, and the cable is wound. The other end of the cable is connected to the front member.
In this roll shade device, when the front member is moved rearward, the cable is pulled by the front member, and the cable is unwound from the take-up reel, whereby the take-up shaft is rotated about the horizontal axis. And the screen is wound around the winding shaft.

JP 2000-272341 A

The roof of the vehicle is formed so as to have a middle height in the left-right direction, and it is considered that the winding shaft of the roll shade device is curved and formed in a mountain shape with the center in the left-right direction as the top in accordance with this shape. It has been.
In this case, the take-up shaft is formed into a cylindrical shape by a member that is elastically deformed, and the take-up shaft can be freely rotated around a shaft center on a support shaft that is curved in a mountain shape with the central portion in the left-right direction as the top. The structure is fitted outside.

  The take-up shaft is flexible over the entire length so that the take-up shaft rotates smoothly around the axis with respect to the curved support shaft (in order to improve followability to the support shaft during rotation of the take-up shaft). When formed with a member, the winding shaft rotates when the winding reels provided on both the left and right sides rotate, and therefore the rotation of the central portion is slow with respect to the left and right side portions of the winding shaft. The winding shaft is twisted.

When the screen is wound, if the winding shaft is twisted, the screen is slackened and wrinkled, resulting in a problem that the appearance of the product is deteriorated.
Further, in order to prevent the winding shaft from being twisted, when the cylindrical winding shaft is formed of a highly rigid plastic (polycarbonate or the like), mainly at a portion with a large curvature on the center side in the left-right direction, when the winding shaft rotates. The followability with respect to the support shaft is impaired, and the take-up shaft is plastically deformed by heat generated during rotation, resulting in deterioration of operability (generation of pulsation) and product deterioration.

In view of the above problems, the present invention externally fits a cylindrical winding shaft that winds up a screen to a spindle that is curved and formed in a mountain shape with the central portion in the left-right direction as a top. An object of the present invention is to provide a roll shade device having a take-up shaft that has good followability to a curved support shaft and is strong against torsion.

In order to solve the technical problem, the technical means taken by the present invention includes a screen positioned below a translucent panel provided on a roof of a vehicle, and a rear end side below the translucent panel. A cylindrical winding shaft that is disposed in a direction and winds up the screen, and a support shaft that is externally fitted to the winding shaft and rotatably supports the winding shaft;
The support shaft is curved and formed in a mountain shape with the central portion in the left-right direction as the top,
The winding shaft is formed by a flexible member that is formed by a flexible member and is fitted to a central portion in the left-right direction of the support shaft, and is formed by a member that is stiffer than the flexible member, and both left and right sides of the support shaft. A left and right hard member that is externally fitted to the part and connected to the flexible member so as to be integrally rotatable ,
Left and right take-up reels provided for the left and right hard members, respectively, having left and right take-up reels that rotate integrally with the hard member,
Left and right cables provided between the left and right take-up reels and the front part of the screen, respectively, which are unwound from the take-up reel by the rearward movement of the screen and move the hard member in the screen take-up direction. It has left and right cables to be rotated .

In addition, a portion of the support shaft on which the hard member is fitted is linearly formed in an inclined direction that moves upward as it goes to the center in the left-right direction, and a portion of the support shaft on which the flexible member is fitted protrudes upward. Formed into a curved shape ,
A left and right joint member that is rotatably fitted on a support shaft between the flexible member and the left and right hard members and connects the flexible member and the left and right hard members so as to be integrally rotatable. It is good to have the right and left joint member which has the 1st fitting cylinder part in which a flexible member fits outside, and the 2nd fitting cylinder part in which the above-mentioned hard member fits .

  Moreover, you may form a flexible member with the tube or coil spring which consists of elastomers.

The central portion of the winding shaft in the left-right direction is a curved portion that is convex upward and is a portion with a large curvature. By forming the portion with a flexible member made of a flexible member, Followability with respect to the support shaft during rotation can be ensured, and plastic deformation due to heat generated by rotation of the winding shaft can be prevented.
Further, the left and right side portions of the winding shaft are straight or close to straight portions and are difficult to cause plastic deformation due to heat, and the torsional rigidity is increased by forming the portions with hard members having higher rigidity than the flexible members. Accordingly, it is possible to suppress a delay in the rotation of the central side portion with respect to the left and right side portions of the winding shaft, and it is possible to make the rotation constant in the length direction of the winding shaft.

  Therefore, according to the present invention, it is possible to provide a roll shade device having a winding shaft that has good followability with respect to a curved support shaft and is strong against twisting.

It is a front view of the attachment part of a winding shaft. 1 is a perspective view of a vehicle. It is a top view which shows the left half parts, such as a flame | frame, of a roll shade apparatus. It is a top view of a part of roll shade device. It is a disassembled perspective view of a screen, a winding shaft, a front member, etc., and the left side guide shoe, guide member, and coil spring are omitted. (A) is a side sectional view of the central part in the left-right direction of the upper part of the vehicle, (b) is a side sectional view of a guide rail arrangement part, and (c) is a side sectional view of a screen guide arrangement part. It is a back sectional view showing the relation of a screen, a guide rail, a guide shoe, and a screen guide. (A) is sectional drawing of the joint part of a flexible member and a hard member, (b) is AA arrow sectional drawing, (c) is BB arrow sectional drawing. It is front sectional drawing of the left-right direction outer end part of a winding shaft. It is a perspective view of the state before the joint of the joint part of a flexible member and a hard member. It is a perspective view of the state before the joint of the joint part of a flexible member and a hard member which shows the winding shaft which concerns on other embodiment. It is sectional drawing which shows the winding shaft which concerns on other embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 2, reference numeral 1 denotes a vehicle exemplified by an automobile. An opening 3 is formed in the roof 2 of the vehicle 1, and the opening 3 is closed by a translucent panel 4.
In the following description, the laterally inward refers to the direction from the lateral end of the vehicle toward the lateral center, and the laterally outward refers to the direction from the lateral center of the vehicle toward the lateral end. .

The translucent panel 4 is made of a transparent material or a translucent material and has translucency. The translucent panel 4 may be an immovable panel fitted and fixed in the opening 3, or a movable panel (sunroof panel) that opens and closes the opening 3. Good.
The vehicle 1 is provided with a roll shade device disposed below the translucent panel 4.

  As shown in FIGS. 3 to 6, the roll shade device includes a frame 6, a screen 7 that blocks light transmitted through the translucent panel 4, a front member 8 provided at a front portion of the screen 7, A screen guide 9 for guiding the left and right sides of the screen 7, a winding shaft 10 for winding the screen 7, a support shaft 11 for rotatably supporting the winding shaft 10, the front member 8 and the winding shaft 10 and an interlocking mechanism for interlocking with.

The frame 6 includes a front housing 13 positioned below the front edge side of the translucent panel 4, a rear housing 14 positioned below the rear edge side of the translucent panel 4, and left and right side edges of the translucent panel 4. It has a pair of guide rails 15 located below the part, and has a substantially rectangular shape that is long in the left-right direction.
The front housing 13 and the rear housing 14 are formed in a curved shape that protrudes upward in a front view in accordance with the curved shape of the roof 2, and the center in the left-right direction is the top.

Further, the guide rail 15 is formed in a curved shape that protrudes upward in a side view in accordance with the curved shape of the roof 2, and the front side is a top part slightly from the center part in the front-rear direction.
The front portions of the left and right guide rails 15 are attached and fixed to the left and right end portions of the front housing 13, and the rear portions of the left and right guide rails 15 are fixed and attached to the left and right end portions of the rear housing 14.

As shown in FIG. 7, the left and right guide rails 15 are each provided with a guide groove 16 that opens inward in the left-right direction over the entire length in the front-rear direction. Moreover, the upper surface side of each guide rail 15 is made into the cable guide part 18 which guides the cable 17 of the interlocking mechanism mentioned later over the full length.
The screen 7 is formed of a flexible member that can be wound up, such as cloth, and can be unfolded so as to cover (close) the opening 19 of the frame 6.

The front member 8 is disposed between the left and right guide rails 15. The front portion of the screen 7 is fixed to the lower surface side of the front member 8 in the left-right direction.
Further, the front member 8 is formed in a curved shape that protrudes upward in a front view, and a central portion in the left-right direction is a top portion.
Guide shoes 21 are provided on both the left and right sides of the front member 8, and each guide shoe 21 is fitted in the guide groove 16 of the guide rail 15 on the same side in the left-right direction so as to be slidable in the front-rear direction. Yes. Thereby, the front member 8 is supported by the guide rail 15 so as to be movable back and forth.

The screen 7 can be opened and closed by moving the front member 8 back and forth.
An operation member 22 for operating the front member 8 from the passenger compartment side is provided at the center in the left-right direction of the front member 8.
The left and right screen guides 9 are disposed on the inner side in the left-right direction of the guide rail 15 on the same side in the left-right direction. The screen guide 9 is formed of a bar that is long in the front-rear direction, and is formed in a curved shape along the guide rail 15.

The screen guide 9 is disposed along the lower end of the guide groove 16 of the guide rail 15, the front end side is fixed to the front housing 13, and the rear end side is supported by the rear housing 14.
The left and right side edges of the screen 7 are folded back inward in the left-right direction and sewn into a bag shape. A screen guide 9 is inserted into the bag-like edge portion 23, and the screen guide 9 on the left and right side The left and right side edges of the screen 7 are guided, and the screen 7 is given a horizontal tension.

As shown in FIGS. 1, 8, and 9, the winding shaft 10 is formed in a cylindrical shape and is externally fitted to the support shaft 11 so as to be rotatable around an axis.
The support shaft 11 is disposed on the upper side of the rear housing 14, is disposed in the left-right direction along the rear housing 14, and the left and right end portions are fixed to the rear housing 14.
Further, the support shaft 11 is curved and formed in a front-view mountain shape in which the central portion in the left-right direction is the top in accordance with the rear housing 14 (in accordance with the curved shape of the roof 2).

  The winding shaft 10 includes a flexible member 24 that is externally fitted to a portion on the center side in the left-right direction of the support shaft 11, left and right hard members 25 that are externally fitted to left and right portions of the support shaft 11, and a flexible member 24. It comprises a left and right joint member 26 that connects the left and right hard members 25 so as to be integrally rotatable about an axis, and a cylindrical shaft 30 that is connected to the left and right outer ends of the left and right hard members 25 so as to be integrally rotatable. Yes.

The flexible member 24 is formed of a flexible (easily elastically deformable) member. In the illustrated example, the flexible member 24 is formed of a tube made of an elastomer (for example, TPO).
The hard member 25 is formed of a member having higher rigidity than the flexible member 24, and in the present embodiment, the hard member 25 is configured by a metal (for example, aluminum) straight pipe.

The hard member 25 may be made of a hard resin.
The outer diameters of the flexible member 24 and the hard member 25 are the same.
The joint member 26 is formed in a cylindrical shape having a linear axis by a resin (or metal) such as POM, and is rotatable about the axis about the spindle 11 between the flexible member 24 and the hard member 25. Is externally fitted.

As shown in FIGS. 8 and 10, the joint member 26 is provided on the central cylindrical portion 27 at the center in the axial center direction and on one side in the axial center direction of the central cylindrical portion 27, and the end portion of the flexible member 24 is outside. It has the 1st fitting cylinder part 28 fitted and fixed, and the 2nd fitting cylinder part 29 which is provided in the axial direction other side of the center cylinder part 27, and the edge part of the hard member 25 is externally fitted and fixed. .
The joint member 26 is formed in a stepped cylindrical body in which the first and second fitting cylindrical portions 28 and 29 are formed to have a smaller diameter than the central cylindrical portion 27. The joint member 26 includes the flexible member 24 and the hard member. The outer surface of the member 25 is formed so as to be flush with the central cylindrical portion 27.

For example, the flexible member 24 is fixed to the first fitting tube portion 28 so as to be rotatable integrally with an adhesive or the like.
The hard member 25 is prevented from coming off from the second fitting cylinder part 29 by engaging the engagement claw 32 provided in the second fitting cylinder part 29 with the engagement hole 31 formed in the hard member 25. And the rotation stop part 34 provided in the 2nd fitting cylinder part 29 fits in the engagement groove | channel 33 formed in the hard member 25, and the rotation around an axial center is made | formed.

The engaging claws 32 are elastically deformed radially inward when the second fitting cylinder part 29 is inserted into the hard member member 25, and allow the second fitting cylinder part 29 to be inserted, and the elastic deformation is restored. This engages with the engagement hole 31.
The cylindrical shaft 30 is formed into a cylindrical shape having a linear axis by a highly rigid resin such as POM (or metal, etc.), and is rotatable about the axis about the spindle 11 on the outer side in the left-right direction of the hard member 25. Is externally fitted.

The inner side of the cylindrical shaft 30 in the left-right direction is a fitting portion 42 to which the outer end of the hard member 25 is fitted in the left-right direction, and is provided on the hard member 25 at a rotation-preventing portion provided in the fitting portion 42. By fitting the formed groove, the hard member 25 is secured to the fitting portion 42 around the axis.
The fitting portion 42 of the cylindrical shaft 30 may be fixed to the hard member 25 with an adhesive or the like.

Further, the outer side of the cylindrical shaft 30 in the left-right direction is a small-diameter portion 43 having a smaller diameter than the outer diameter of the winding shaft 10.
In the present embodiment, the middle portion of the winding shaft 10 is rotatably supported on the support shaft 11 by the joint member 26, and the left and right end portions of the winding shaft 10 are rotatably supported on the support shaft 11 by the cylindrical shaft 30. ing.

Further, in the present embodiment, the support shaft 11 is linearly formed in an inclined direction in which the portion where the hard member 25, the joint member 26, and the cylindrical shaft 30 are externally fitted moves toward the center in the left-right direction. 11 is formed in a curved shape in which a portion to which the flexible member 24 is fitted is convex upward.
In addition, you may form in the moderate curve shape which convexly protrudes the site | part which the hard member 25, the joint member 26, and the cylinder shaft 30 of the spindle 11 fit upward.

The rear end side of the screen 7 is fixed to the flexible member 24, the hard member 25, the central cylindrical portion 27 of the joint member 26, and the small diameter portion 43 of the cylindrical shaft 30.
The rear end side of the bag-like edge portion 23 of the screen 7 is fixed to the small diameter portion 43 of the cylindrical shaft 30.
Since both the front member 8 and the take-up shaft 10 have a curved shape that protrudes upward, the screen 7 also has a curved shape that protrudes upward between them, thereby securing an indoor space. It has been.

The winding shaft 10 having the above-described configuration can be variously modified. For example, the flexible member 24 may be directly connected to the hard member 25. Further, the cylindrical shaft 30 may be integrally formed with the hard member 25.
The interlocking mechanism includes a take-up reel 36 that is provided so as to be integrally rotatable at an outer end in the left-right direction of the take-up shaft 10, a cable 17 that interlocks the take-up reel 36 and the front member 8, and the cable 17 A pair of left and right pulleys 37 and guide members 38 for guiding the guide.

In this embodiment, the take-up reel 36 is integrally formed on the outer side in the left-right direction of the cylindrical shaft 30, and has an insertion hole 39 that communicates with the inner hole of the cylindrical shaft 30. 11, the take-up reel 36 is supported by the support shaft 11 so as to be rotatable about the axis.
A portion of the support shaft 11 that is fixed to the rear housing 14 on the left and right ends protrudes outward from the take-up reel 36 in the left-right direction.

The take-up reel 36 may be formed separately from the cylindrical shaft 30 and connected to the cylindrical shaft 30 so as to be integrally rotatable.
A portion of the support shaft 11 on which the take-up reel 36 is fitted is also formed in a straight line.
The left and right take-up reels 36 are located behind the guide rail 15 on the same side in the left-right direction.

The rear ends of the cables 17 are fixed to the take-up reel 36 of the take-up reel 36 and are wound around the take-up reel 36.
Further, the cable 17 is disposed forward from the take-up reel 36 along the cable guide portion 18 of the guide rail 15, and is wound around a pulley 37 provided on the front side of the guide rail 15 to the rear. It is folded.

The pulley 37 is supported by a support member 44 fixed to the front housing 13 so as to be rotatable about a left-right axis.
Further, the cable 17 is wound around the pulley 37 and folded back, and then arranged inward in the left-right direction by a guide member 38 provided on the front member 8.

Coil springs 45 are arranged on the left and right sides of the front member 8 in the left-right direction, and the front ends of the left and right cables 17 are hooked on the left and right outer ends of the coil springs 45 on the same side in the left-right direction. Has been.
The left and right inner ends of the left and right coil springs 45 are connected by a linear member 46, and tension is applied to the left and right cables 17 by the left and right coil springs 45.

The winding direction of the cable 17 to the winding reel 36 is opposite to the winding direction of the screen 7 to the winding shaft 10.
In the roll shade device configured as described above, when the screen 7 is deployed so as to cover the opening 19 of the frame 6 (the screen 7 is unwound from the take-up shaft 10), the front member 8 is the guide rail. 15, the rear end side of the cable 17 is wound around a take-up reel 36.

When the front member 8 is moved backward from this state, the cable 17 is engaged with the guide member 38 of the front member 8, so that the cable 17 is pulled by the front member 8 and the rear end side of the cable 17 is wound. It is unwound from the take-up reel 36.
As a result, the take-up reel 36 rotates and the take-up shaft 10 rotates integrally with the take-up reel 36 so that the screen 7 is taken up on the take-up shaft 10.

Conversely, when the front member 8 is moved forward from the state where the screen 7 is wound around the winding shaft 10, the screen 7 is pulled by the front member 8 and the screen 7 is unwound from the winding shaft 10. .
As a result, the take-up shaft 10 rotates in the opposite direction, and the rear end side of the cable 17 is taken up by the take-up reel 36.

When the take-up shaft 10 rotates, the flexible member 24 follows the shape of a portion with a large curvature (a portion bent upwardly in a curved shape) at the central portion in the left-right direction of the support shaft 11 (flexible). Rotate while smoothly elastically deforming.
Therefore, as in the case where the winding shaft 10 is formed of a highly rigid plastic, the winding shaft 10 is plastically deformed by the heat generated at the time of rotation, resulting in deterioration in operability (occurrence of pulsation) and product deterioration. There is nothing.

Further, since the left and right side portions of the support shaft 11 are straight (or a curved shape close to a straight), even if the left and right side portions of the take-up shaft 10 are constituted by the rigid hard member 25, the take-up shaft 10 can be rotated. There is no influence, and the winding shaft 10 rotates smoothly.
Further, by configuring the left and right side portions of the winding shaft 10 with the rigid hard members 25, the left and right side portions of the winding shaft 10 are formed on the left and right sides of the winding shaft 10 as in the case where the entire winding shaft 10 is formed of a flexible member. On the other hand, there is no rotation delay in the central portion, and the rotation of the winding shaft 10 is constant in the length direction.

As described above, in the present embodiment, the winding shaft 10 is mainly constituted by the central flexible member 24 and the left and right hard members 25, so that the followability to the curved support shaft 11 is good. The winding shaft 10 that is strong against twisting can be provided.
FIG.11 and FIG.12 has shown the winding shaft 10 of the other form, and the flexible member 24 is formed with the coil spring.

A linear portion 47 that extends linearly in the axial direction is formed at the end of the coil spring 24, and a hooking portion 48 that is bent radially inward is formed on the distal end side of the linear portion 47. Yes.
On the other hand, a groove portion 49 into which the linear portion 47 at the end of the coil spring 24 fits and a hooking hole 50 into which the hooking portion 48 fits are formed in the central cylindrical portion 27 of the joint member 26.

When the linear portion 47 fits into the groove portion 49 and the hooking portion 48 fits, the coil spring is prevented from being turned and pulled out with respect to the joint member 26.
The coil spring is preferably fitted on the first fitting cylinder portion 28 so as not to rotate easily.
Other configurations are the same as those in the above embodiment.

In the case where the flexible member 24 is formed of a resin tube, the groove portion 49 and the retaining hole 50 may not be formed in the central cylindrical portion 27 of the joint member 26.
In addition, various design changes are possible.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Roof 4 Translucent panel 7 Screen 10 Winding shaft 11 Support shaft 24 Flexible member 25 Hard member

Claims (3)

A screen (7) positioned below a translucent panel (4) provided on a roof (2) of a vehicle (1) and a rear end side lower side of the translucent panel (4) are arranged in the left-right direction. A cylindrical winding shaft (10) for winding the screen (7), and a support shaft (10) on which the winding shaft (10) is externally fitted and rotatably supports the winding shaft (10). 11)
The support shaft (11) is curved and formed in a mountain shape with the central portion in the left-right direction as the top,
The winding shaft (10) is formed of a flexible member, and is fitted to the central portion of the support shaft (11) in the left-right direction, and is more rigid than the flexible member (24). It is mainly composed of left and right hard members (25) that are formed by a high member and are externally fitted to the left and right sides of the support shaft (11) and connected to the flexible member (24) so as to be integrally rotatable .
Left and right take-up reels (36) respectively provided for the left and right hard members (25), the left and right take-up reels (36) rotating integrally with the hard member (25),
Left and right cables (17) provided between the left and right take-up reels (36) and the front part of the screen (7), respectively, and the take-up reels (36) are moved by the rearward movement of the screen (7). The roll shade device is characterized in that it has left and right cables (17) that are unwound from and rotated the hard member (25) in the winding direction of the screen (7) . A portion of the support shaft (11) where the hard member (25) is fitted is linearly formed in an inclined direction that moves upward as going to the center in the left-right direction, and the flexible member (24 of the support shaft (11)) ) Is formed in a curved shape that protrudes upward ,
The flexible member (24) and the left and right hard members (25) are rotatably fitted on the support shaft (11) between the flexible member (24) and the left and right hard members (25). A left and right joint member (26) coupled so as to be integrally rotatable, wherein a first fitting tube portion (28) to which the flexible member (24) is fitted and a second fitting to which the hard member (25) is fitted. The roll shade device according to claim 1, comprising left and right joint members (26) having a joint tube portion (29) .   The roll shade device according to claim 1 or 2, wherein the flexible member (24) is formed of a tube made of an elastomer or a coil spring.

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