JP5605126B2 - Sunshade for vehicle - Google Patents

Description

  The present invention relates to a vehicle sunshade locking mechanism that shields and opens a transparent panel installed on the roof of a vehicle.

  In order to maintain the opening degree of the manual sunshade, some have a lock mechanism installed in the garnish. The connecting rod formed of spring steel is held in the garnish, and the opening of the sunshade is held by pressing the shoes attached to both ends of the connecting rod against the guide rail by the elastic force of the connecting rod. When the opening / closing operation is performed, the connecting rod is bent, and the lock is released by releasing the shoe from the guide rail (see, for example, Patent Document 1).

  Some use a detent mechanism as a roll curtain lock mechanism. A hemispherical convex portion interlocked with the roll curtain is pressed and fitted into an oval concave portion installed on the rail by a spring to maintain the opening degree of the roll curtain. When the opening / closing operation is performed, an overrun is performed in the opposite direction to gain momentum, and then the step of the recess is overcome to release the lock (for example, refer to Patent Document 2).

JP 2009-298291 A JP-A-9-136538

  However, in Patent Document 1, since the pressing force is generated by elastic deformation in the length direction of the connecting rod having a large spring constant, the dimensional accuracy in the length direction of the connecting rod and the dimensional accuracy in the pitch interval of the guide rail must be increased. There is a problem that must be.

  Further, in Patent Document 2, there is a problem that it is necessary to overrun when releasing the lock mechanism, and improvement in operability is desired. Furthermore, there is a problem that the number of parts for the detent mechanism increases.

  The present invention has been made in view of the above problems, and an object thereof is to provide a vehicle sunshade having a lock mechanism that is excellent in operability and can reduce the number of parts while reducing dimensional accuracy. .

A first problem-solving means of the present invention includes a light-shielding sheet that opens and closes a light-transmitting portion of a roof of a vehicle, and a pair of guide rails that are installed on the vehicle so as to be able to open and close the light-shielding sheet. A pair of pressing members that are in sliding contact with the guide rail, and a bent leaf spring that extends in the opposing direction of the guide rail and that has both ends linked to the pressing member to press the pressing member against the guide rail. The bent leaf spring includes a central portion, a pair of first extending portions that are bent adjacent to the central portion in the vehicle front-rear direction, and the vehicle front-rear direction with respect to the first extending portion. A pair of second extending portions that are bent in the direction and adjacent to each other
Further, the second problem-solving means of the present invention is characterized in that the bent leaf spring is disposed on a moving member linked to an edge of the light shielding sheet in the vehicle front-rear direction, and the first extending portion and the second extending portion are arranged. The corner portion that contacts the bent portion between the existing portion is bent as a fulcrum, and the pressing of the pressing member against the guide rail is released.

The third problem solving means of the present invention is characterized in that the bent leaf spring is bent by moving an operation member installed in the central portion and movable in the vehicle front-rear direction .

According to a fourth problem-solving means of the present invention, the guide rail includes a concave portion that is recessed in the facing direction, and the pressing member is a convex portion that protrudes in the facing direction so as to be fitted to the concave portion. It is characterized by providing .

  In the vehicle sunshade according to the present invention, since the pressing member is pressed against the guide rail by the elastic force of the bent leaf spring having a small spring constant, the bending amount of the bent leaf spring can be increased, and the extending direction of the bent leaf spring can be increased. The dimensional accuracy and the dimensional accuracy of the pitch interval of the guide rail can be relaxed. In addition, since the pressing members installed at both ends of the moving member are pressed by the elastic force of one bent leaf spring, it is not necessary to provide detent mechanisms at both ends of the moving member, and the number of parts can be reduced. . Furthermore, since the pressing member can be pressed against the guide rail and the moving member can be held by a frictional force, an overrun operation at the time of the unlocking operation of the detent mechanism becomes unnecessary, and the operability is improved.

  Further, since the bent leaf spring is composed of two pairs of bent portions, the amount of bending in the facing direction can be increased.

  Further, since the bending plate spring can be incorporated into the moving member and bent inside the moving member, the moving member and the bending plate spring can be assembled, and the assemblage to the vehicle is improved.

  In addition, operability is improved by providing a movable operation member at the center of the bent leaf spring.

  Moreover, since the convex part of a press member fits into the concave part of a guide rail, the opening degree of a light shielding sheet can be hold | maintained with little pressing force.

It is a perspective view which shows the roof of the motor vehicle in which the sunshade which concerns on embodiment of this invention was installed. It is a perspective view which shows the open state of the sunshade which concerns on embodiment of this invention. It is a top view of the garnish which concerns on embodiment of this invention. It is a fragmentary sectional view of the garnish concerning the embodiment of the present invention.

  Hereinafter, the vehicle provided with the vehicle sunshade of the present invention will be described.

  FIG. 1 is a perspective view of a roof 1 of an automobile provided with a sunshade 11 (vehicle sunshade) according to an embodiment of the present invention. An opening 3 (translucent portion) is formed on the roof panel 2 forming the roof 1 so that sunlight can be taken in, and a resin panel 4 formed of a transparent resin is installed. A seal member (not shown) is disposed on the outer peripheral edge 5 of the resin panel 4 in order to prevent rainwater from entering the vehicle compartment. A sunshade 11 shown in FIG. 2 is installed on the surface 6 of the roof panel on the passenger compartment side, and the resin panel 4 is lighted or blocked by opening and closing the sunshade 11.

  FIG. 2 is a perspective view showing an open state of the sunshade 11 according to the embodiment of the present invention. A pair of guide rails 13 extending in the vehicle front-rear direction 12 (opening / closing direction) are fixed to the surface 6 on the passenger compartment side of the roof panel 4 with an interval of a rail pitch 15 in the vehicle width direction 14 (opposing direction), Each guide rail 13 is curved according to the shape of the roof panel 2, and is connected by a pair of frames 16 extending in the vehicle width direction 14 at each end 13 a in the vehicle front-rear direction 12. Each guide rail 13 is extrusion-molded with aluminum or the like, and each frame 16 is press-molded with a steel plate or the like. Two pairs of elongated holes 13c (concave portions) that penetrate in the vehicle width direction 14 and extend in the vehicle front-rear direction 12 are formed near the center portion 13b of each guide rail 13. Moreover, the retractor 19 which winds up the light-shielding sheet 18 is rotatably held at both ends 13a of the guide rails 13, respectively. The retractor 19 is a rod-shaped core member that extends in the vehicle width direction 14, and one edge portion of each light shielding sheet 18 is fixed to the retractor 19 that is a core member. A garnish 21 (moving member) is installed on the other edge of the light shielding sheet 18, and the garnish 21 moves in the vehicle front-rear direction 12 along the guide rail 13. The guide rail 13 is provided with a side bracket 22 for attaching the sunshade 11 to the vehicle outward in the vehicle width direction 14 in the vicinity of the central portion 13b. Similarly, a frame bracket 23 is also provided on the frame 16.

  FIG. 3 is a plan view of the garnish 21 according to the embodiment of the present invention. The garnish 21 has a rectangular shape molded from resin and extended in the vehicle width direction 14, and includes a bent leaf spring 25, an operation button 26 (operation member), and a pair of shoes 27 (pressing members). The long sides of the garnish 21 are a first edge 21 a and a second edge 21 b, respectively, and the second edge 21 b is joined to the edge of the light shielding sheet 18. A central recess 28 that is recessed in the vehicle vertical direction 31 (vertical direction in the figure) is formed at the center of the garnish 21, and the operation button 26 is installed so as to be slidable in the vehicle longitudinal direction 12. Further, in order to accommodate the bent leaf spring 25 in the garnish 21, a groove 29 that extends in the vehicle width direction 14 and is symmetric with respect to the central recess 28 is formed. The groove portion 29 communicates with the central recess portion 28 and communicates with the first groove portion 29a and a pair of first groove portions 29a extending from the second edge portion 21b near the central recess portion 28 to the first edge portion 21a near the end portion 21c. It is comprised from a pair of 2nd groove part 29b which reaches the edge part 21c of the garnish 21. As shown in FIG. The first groove portion 29a and the second groove portion 29b are bent at an obtuse angle at the corner portion 29c, and the groove width in the vehicle front-rear direction 12 of the first groove portion 29a is the same as the first groove wall 29d of the first groove portion 29a and the second groove portion 29b. Since the groove wall 29e forms an angle, the groove wall 29e decreases linearly from the central recess 28 to the corner 29c.

  The bent leaf spring 25 accommodated in the groove portion 29 is formed from plate-shaped spring steel, and the first bent portion 25b with respect to the central portion 25a and the central portion 25a in which the operation buttons 26 are installed symmetrically in the vehicle width direction 14. The first extending portion 25c is bent at the second extending portion 25c and the second extending portion 25e is bent at the second bending portion 25d (bending portion) with respect to the first extending portion 25c. The first bent portion 25b has an obtuse convex shape toward the second edge 21b, and the second bent portion 25d has an obtuse convex shape toward the first edge 21a. A hook portion 25f (end portion) for linking with the shoe 27 is formed at the tip of the second extending portion 25e. A pair of shoes 27 is installed on the end portion 21c of the garnish 21 so as to be movable in the vehicle width direction 14, and each hook portion 25f of the bent leaf spring 25 is fitted in a shoe groove portion 27a formed in each shoe 27.

  FIG. 4 is a partial cross-sectional view of the garnish 21 according to the embodiment of the present invention. The end portion 21c of the garnish 21 is formed with a concave shoe holding portion 21d that opens toward the outer direction 14a in the vehicle width direction 14, and holds the shoe 27 so as to be movable in the vehicle width direction 14. , Communicated with the second groove 29b in a cross section (not shown). On the upper side of the shoe holding portion 21d, an opening 21e for assembling the hook portion 25f of the bent leaf spring 25 to the shoe groove portion 27a is formed. A rail follower 27 b is formed on the outer side in the width direction of the shoe 27, and the rail follower 27 b follows the guide rail 13. The guide rail 13 is molded with an inner wall portion 13d that is in sliding contact with the sliding inner surface 27c of the rail follower 27b, a bottom portion 13e that is in sliding contact with the sliding bottom surface 27d, and an outer wall portion 13f that is in sliding contact with the sliding outer surface 27e. An elongated hole 13c is formed in a cross section (not shown) of the portion 13f. Shoe convex portions 27 f (convex portions) are formed on the sliding outer surface 27 e of the rail following portion 27 b toward the outer direction 14 a in the vehicle width direction 14. Further, a flange portion 13g protruding in the outer direction 14a of the vehicle width direction 14 is formed on the bottom portion 13e of the guide rail 13, and a shoe retaining portion 13h is installed at the upper end of the outer wall portion 13f.

  When the sunshade 11 is in the fully closed state, the bent leaf spring 25 is bent in accordance with the shape of the groove 29, and is held in a state in which the first extension 25c is pressed toward the first groove wall 29d. A pressing force which is a reaction force of the restoring force toward the first groove wall portion 29d acts from the first extending portion 25c toward the second extending portion 25e. Therefore, the shoe 27 is pressed toward the guide rail 13 in the outer direction 14a, the sliding outer surface 27e is in sliding contact with the outer wall portion 13f, and the shoe convex portion 27f is mechanically fitted in the elongated hole 13c of the guide rail. The garnish 21 is held by locking. Further, when both end portions 21 c of the garnish 21 are pressed by the shoes 27, the garnish 21 is centered in the vehicle width direction 14 with respect to the guide rail 13.

  When changing the opening degree of the sunshade 11, by sliding the operation button 26, the central portion 25a of the bent leaf spring 25 moves toward the second edge portion 21b against the pressing force, and the corner portion 29c is used as a fulcrum. The extending portion 25c is bent. The second bending portion 25d moves toward the central direction 14b in the vehicle width direction 14 along with the bending of the first extending portion 25c, and the second extending portion 25e extends in the central direction 14b along the second groove portion 29b. Gravitate. Due to the movement of the shoe 27 accompanying the movement of the second extending portion 25e, the shoe convex portion 27f is detached from the elongated hole 13c, the lock is released, and the garnish 21 can be moved.

  When holding the garnish 21 at an arbitrary opening, the shoe 27 is pressed against the guide rail 13 in the outer direction 14a, and the position of the garnish 21 is held by the frictional force between the shoe convex portion 27f and the outer wall portion 13f. .

  In the sunshade 11 of the present invention, since the shoe 27 is pressed against the guide rail 13 by the elastic force of the bent leaf spring 25 having a smaller spring constant than the connecting rod, the amount of bending of the bent leaf spring 25 in the vehicle width direction 14 is increased. be able to. Therefore, the dimensional accuracy of the rail pitch 15 and the dimensional accuracy of the bent leaf spring 25 in the vehicle width direction 14 can be relaxed. Further, since the shoes 27 installed at both ends 21c of the garnish 21 are pressed by the elastic force of one bent leaf spring 25, it is not necessary to provide detent mechanisms at both ends 21c, and the number of parts can be reduced. . Further, since the shoe 27 can be pressed against the guide rail 13 and the garnish 21 can be held by a frictional force, an overrun operation at the time of the unlocking operation of the detent mechanism becomes unnecessary and the operability is improved. Even if the garnishes 21 are arranged adjacent to each other when fully closed, the overrun operation is not required during the opening operation, so that the garnishes 21 do not interfere with each other and the retractors 19 can be arranged to face each other, so that the opening 3 is widened. be able to.

  Further, the bent leaf spring 25 is composed of two pairs of a first extending portion 25c and a second extending portion 25e that are bent with respect to each other, and is deformed with the second bent portion 25d as a fulcrum, so that it bends in the vehicle width direction 14. The amount can be increased.

  Further, since the bent leaf spring 25 can be incorporated into the garnish 21 and bent inside the garnish 21, the garnish 21 and the bent leaf spring 25 can be assembled, and the assemblage to the vehicle is improved.

  Further, the operability is improved by providing the operation button 26 that is movable in the vehicle front-rear direction 12 at the central portion 25 a of the bent leaf spring 25.

  Further, since the shoe convex portion 27f is mechanically fitted into the elongated hole 13c of the guide rail 13 and holds the position of the garnish 21, it can be held with a small pressing force. Therefore, operability is improved by applying a universal design that reduces the operating force by keeping the spring constant of the bent leaf spring 25 small. In addition, it is possible to improve the operational feeling by notifying the operator of the moderation feeling when the concave and convex portions are fitted. Furthermore, since the position of the garnish 21 is maintained by mechanical uneven fitting that does not easily come off even when strong vehicle vibrations are applied, the application can be expanded to SUV vehicles that frequently travel on non-paved roads and vehicles for emerging countries.

  In addition, you may change the said embodiment as follows.

  In the above-described embodiment, the sunshade 11 is applied to the lighting opening / closing of a fixed sunroof, but may be applied to a slide-out or flip-out sunroof by hinge fixing.

  In the above embodiment, the light shielding sheet 18 is wound around the retractor 19 but may be folded into a bellows, or a plate-like light shielding panel may slide.

  In the above-described embodiment, the shoe convex portion 27f is fitted in the elongated hole 13c of the guide rail 13 and holds the position of the garnish 21 in the fully closed position, but the elongated hole 13c is eliminated and the sliding outer surface 27e is removed. It may be held only by the frictional force between the outer wall portion 13f and the outer wall portion 13f.

  In the above-described embodiment, the bent leaf spring 25 is symmetric in the vehicle width direction 14 but may be asymmetric, and is divided in the vehicle width direction 14 for convenience of layout, assembly, or cost. May be. At this time, the operation button 26 has a structure in which the lock is released by sliding in the vehicle front-rear direction 12, but a cam mechanism or a link mechanism is used between the operation button 26 and the bent leaf spring 25, and the vehicle width direction 14 or The structure may be such that the lock is released by sliding or rotating in the vehicle vertical direction 31 or the like, or a lever shape having a handle. Further, the operation of the operation button 26 may be motorized and applied to an electric sunshade.

1 roof 2 roof panel 3 opening (translucent part)
4 Resin Panel 11 Sunshade (Vehicle Sunshade)
12 Vehicle longitudinal direction (opening and closing direction)
13 Guide rail 13c Slot (recess)
14 Vehicle width direction (opposite direction)
18 Shading sheet 19 Retractor 21 Garnish (moving member)
25 bent leaf spring 25a central portion 25c first extending portion 25d second bent portion (bent portion)
25e Second extension part 25f Hook part (end part)
26 Operation buttons (operation members)
27 Shoe (Pressing member)
27f Shoe convex part (convex part)
29 Groove 29c Corner

Claims (4)

A light shielding sheet that opens and closes a translucent portion of the roof of the vehicle;
A pair of guide rails installed in the vehicle facing each other and holding the light shielding sheet so as to be freely opened and closed,
A pair of pressing members in sliding contact with the guide rail;
A bent leaf spring that extends in the opposing direction of the guide rail and that has both ends linked to the pressing member and presses the pressing member against the guide rail;
The bent leaf spring is bent in the vehicle longitudinal direction with respect to the central portion, a pair of first extending portions bent in the vehicle longitudinal direction with respect to the central portion, and adjacent to the first extending portion. A vehicle sunshade having a pair of adjacent second extending portions. The bent leaf spring is disposed on a moving member linked to an edge of the light-shielding sheet in the vehicle front-rear direction, and a corner portion that contacts the bent portion between the first extending portion and the second extending portion. flexes as the fulcrum, the vehicle sunshade according to claim 1 you and cancels the pressing against the guide rail of the pressing member. 3. The vehicle sunshade according to claim 1, wherein the bent leaf spring is bent by moving an operation member installed in the central portion and movable in the vehicle front-rear direction . 4. The guide rail includes a recess recessed in the facing direction,
4. The vehicle sunshade according to claim 1 , wherein the pressing member includes a protruding portion protruding in the facing direction so as to be fitted to the recessed portion . 5.

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