JP4323999B2 - Automotive sun visor - Google Patents

Description

  The present invention relates to an automobile sun visor used for anti-glare in a passenger compartment of an automobile.

  Conventionally, various types of automobiles are used for the purpose of securing the occupant's view by blocking direct sunlight and the lights of oncoming vehicles at night, etc. It is equipped with a sun visor.

  The sun visor generally has a sun visor core formed so as to obtain a desired light-shielding area, and one side edge portion of the sun visor core is attached to a vehicle body panel via a bracket. And is installed in the automobile. By mounting in this way, the sun visor core can be rotated around the axis of the inserted shaft.When the sun visor is used, the sun visor core is arranged between the occupant and the front window, and when the sun visor is not used, the shaft It is made to rotate in the upper direction around the axis of and is in contact with the ceiling.

  The sun visor is used for anti-glare, and is in contact with the ceiling during normal travel except when necessary. Therefore, recently, a storage recess having a size substantially the same as the outer shape of the sun visor is formed on the ceiling, and when the sun visor is in contact with the ceiling, the sun visor core is stored in the storage recess. By adopting a configuration in which the exposed surface of the sun visor core is located on the same plane as the ceiling, the sun visor core is prevented from protruding by the thickness of the plate, improving its appearance and improving the design of the interior of the vehicle. Often done.

  However, in such a configuration, in order to be able to perform an operation of rotating the sun visor core, a space for putting a finger and touching the side edge of the sun visor core is required. For this purpose, for example, it is necessary to form a groove-shaped gap between the sun visor core and the side end of the housing recess. In the configuration in which such a gap is formed, the sense of unity between the sun visor and the ceiling is provided. It will be damaged and the designability will deteriorate.

  An invention which attempts to solve this problem is disclosed in Patent Document 1. FIG. 9 shows a perspective view of the sun visor 50 disclosed in the document.

In the sun visor 50, the sun visor core 51 has the locking device 52 attached to the sun visor core 51 locked to the locking protrusion 62 attached to the storage recess 61 with the tip facing downward. Thus, the state of being housed in the housing recess 61 is maintained. In this state, the sun visor core 51 is biased so that a rotational force that rotates downward around the shaft 53 is always applied. The locking device 52 is configured to alternately repeat the locked / unlocked state with respect to the locking protrusion 62 every time the sun visor core 51 is pressed. Therefore, by simply pressing the sun visor core 51, the locking of the locking device 52 can be released, and the sun visor core 51 can be rotated to the use position depending on the shaft 53 as shown in the figure. Therefore, in this configuration, it is not necessary to provide an operation gap in the storage recess 61, and the design properties in the stored state can be improved.
Japanese Patent No. 2593443

  Since the sun visor 50 disclosed in Patent Document 1 described above can maintain a sense of unity with the ceiling 60 when not in use, it can be excellent in design in that state. However, as can be seen from the perspective view of FIG. 9, when the sun visor 50 is used, the locking protrusions 61 installed on the ceiling and the locking device 52 installed on the sun visor core 51 are exposed in the vehicle interior. This is unavoidable, and for this reason, the appearance is remarkably impaired.

  The present invention has been made in view of the above problems, and in the sun visor storage position, the sun visor core is accommodated in the storage recess of the ceiling without causing a large gap, so The design can be made excellent, the operation of rotating from the storage position to the use position is easy, and even in the use position, the locking tool is not exposed and the design is excellent. An object of the present invention is to provide an automobile sun visor that can be used.

  In order to achieve the above-described object, a vehicle sun visor according to the present invention includes a shaft attached to a ceiling in a vehicle interior, a light-shielding shaft that is inserted through one side edge portion and is rotatably supported around the shaft. In an automotive sun visor that has a sun visor core that acts as a plate, generates a rotational torque that rotates the sun visor core in a direction that abuts against the ceiling in a state where the sun visor core is located at a storage position that abuts against the ceiling. And a rotational torque transmission path blocking means for blocking a transmission path for transmitting the rotational torque generated by the rotational torque generation means to the sun visor core.

  According to this configuration, the sun visor core can be held at the storage position by being biased by the rotational torque generated by the rotational torque generating means. Then, from the state in which the sun visor core is held in the storage position in this manner, the transmission of the rotational torque to the sun visor core is blocked using the rotation torque transmission path blocking means, so that the sun visor core is stored in the storage position. Can be rotated from.

  In this case, in particular, the sun visor core can be configured to rotate by its own weight when the rotational torque transmission path is interrupted by the rotational torque transmission path cutoff means from the storage position. In this case, another rotating torque generating means for rotating from the storage position is not necessary. The sun visor core can be configured to rotate by its own weight to a position that hangs straight from the shaft, and this position of the sun visor core is advantageous for anti-glare by the sun visor core.

  Furthermore, in the sun visor for automobiles of the present invention, when the sun visor core is further rotated in the same direction as rotating from the storage position to the position where it hangs straight from the shaft, rather than the position where it hangs straight from the shaft, It is preferable to provide an angular position holding means for holding the sun visor core. By providing such an angular position holding means, it is possible to appropriately adjust the position of the sun visor core to an appropriate position convenient for securing a visual field and preventing glare.

  In the present invention, the rotational torque generating means is in a state where the transmission path of the rotational torque is connected to a predetermined intermediate angle position on the way from the storage position to the position where the sun visor core hangs straight from the shaft. When the sun visor core is in the angular position, it generates rotational torque in the same direction as when the sun visor core is located in the stowed position, and when the sun visor core is within the predetermined angle range after the intermediate angle position is exceeded. After the sun visor core is positioned at the storage position, the rotational torque is generated in the opposite direction, or the rotational torque transmission path is blocked by the rotational torque transmission path blocking means. The sun visor core is preferably connected again when it rotates beyond the intermediate position.

  According to this configuration, after rotating the transmission path of the rotational torque and rotating the sun visor core from the storage position, when the transmission path of the rotational torque is connected again, the rotation is returned to the storage position on the sun visor core. Since no torque is applied, the sun visor core can be guided to the use position hanging down from the shaft and kept in that position even though the transmission path of the rotational torque is connected. In addition, when the transmission path of the rotational torque is reconnected, when the occupant returns the sun visor core to the storage position again, the sun visor core is rotated to the storage position side beyond the intermediate angle position described above. Then, the sun visor core can be automatically returned to the storage position by the rotational torque generated by the rotational torque generating means. In addition, unless the transmission path of rotational torque is interrupted, even if the sun visor core rotates slightly from the storage position, a force is applied to return the sun visor core to the storage position, so the sun visor core is stably held in the storage position. be able to.

  Further, when the sun visor core is in the stowed position when the sun visor core is in an angular position between the above-described intermediate position and the position where the sun visor core hangs straight from the shaft, It is good also as a structure which does not generate | occur | produce a rotational torque in the state which generate | occur | produces the rotational torque of the opposite direction and exists in the position where the sun visor core hung down straight from the shaft. As a result, when the sun visor core is positioned at a position that hangs down straight from the shaft, the sun visor core can be stably held at that position.

  As described above, as a configuration suitable for generating the rotational torque in a predetermined pattern according to the angular position of the sun visor core, the rotational torque generating means includes a spring that generates a biasing force in a linear direction, It can be set as the structure which has the cam which converts a power into rotational torque.

  In particular, the spring and the cam are inserted through the shaft, the cam has a rotational torque output member that rotates around the shaft and outputs rotational torque, and the rotational torque transmission path blocking means is inserted through the shaft. It is arranged and connected to the rotational torque output member so as not to rotate with respect to it, is slidable along the shaft, and is not engaged with the sun visor core by moving in the sliding direction. A lock that can be brought into engagement with the sun visor core, a spring that urges the lock in a direction that engages the sun visor core, and a lock that An operation means for moving in a direction to release the engagement with the sun visor core against the urging force can be employed. As described above, by configuring a part of the rotational torque generating means and the rotational torque transmission path blocking means from the parts inserted through the shaft, the arrangement space can be reduced.

  Further, in the above configuration, the elastic force of the spring of the rotational torque transmission path blocking means can be made smaller than the elastic force of the spring of the rotational torque generating means. Thus, the rotational torque is generated while the sun visor core is stably held in the storage position by the relatively strong elastic force of the spring of the rotational torque generating means, and sufficient rotational torque is obtained to rotate the storage position to the storage position during storage. The operation load can be reduced by making the elastic force of the spring of the transmission path blocking means relatively weak.

  According to the present invention, in a sun visor for an automobile that is mounted on a ceiling in an automobile room and is used for shading for anti-glare, the sun visor core is operated by a simple operation of operating an operation means such as a button provided on the sun visor. The structure which can be suspended to a use position is obtained. For this reason, it is not necessary to apply a force to suspend the sun visor core directly to the sun visor core, and the sun visor core fits in the storage position without any gap in the storage recess of the ceiling. Even in the configuration, the operation of hanging the sun visor core can be easily performed. In this way, the sun visor core fits in the storage recess of the ceiling in the storage position, so that the appearance of the sun visor core and the ceiling integrated in the stored state can be obtained and stored. The design of the interior of an automobile can be made excellent. In addition, since the sun visor core is configured to be rotationally biased and held at the storage position, in order to hold the sun visor core at the storage position, a locking protrusion or There is no need to provide a locking device, and the design of the automobile sun visor can be improved even at the use position.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view of an interior of an automobile to which an automobile sun visor 1 according to an embodiment of the present invention is attached. The automobile sun visor 1 has a sun visor core 5 that functions as a light shielding plate. The sun visor core 5 has a long side of an L-shaped shaft 11 that is attached to one side edge portion thereof at the tip of a vertical portion 11d (see FIG. 2 and the like) on the ceiling 4 of the automobile via a bracket (not shown). The horizontal portion 11e is inserted and supported rotatably. The ceiling 4 is formed with a storage recess 6 large enough to store the sun visor core 5 without opening a large gap. The sun visor core 5 is rotated so as to contact the ceiling 4. The exposed surface is located on the same plane as the ceiling 4 in the state of being housed in the housing recess 6.

  A button 2 is provided on the surface of the sun visor core 5 that is exposed in the vehicle interior in the state of being housed in the housing recess 6 as described above. As will be described later, the sun visor core 5 is rotated to a position depending on the shaft 11 as shown by a broken line in FIG. It can be configured.

  Next, a rotational operation mechanism having rotational torque generation means and rotational torque transmission path blocking means that enable the above-described operation of the sun visor core 5 will be described with reference to FIGS. In the present embodiment, the rotational operation mechanism is configured by members provided around the horizontal portion 11e of the shaft 11 in the sun visor core 5, and FIG. 2 is an exploded perspective view of the main members. . Moreover, FIGS. 3-8 has shown each operation state of the rotational operation mechanism in each figure (a), and each figure (b) respond | corresponds to the operation state shown in each figure (a) of the sun visor core 5. FIG. It shows the operating state. In addition, in each figure (a), in order to show the operation state of a rotation operation mechanism intelligibly, the figure seen from the different angle around the horizontal part 11e of the shaft 11 is shown.

  As shown in these drawings, the horizontal portion 11 e of the shaft 11 includes a base 13, a lock 14, a first spring 15, a first cam 16, a second cam 17, a second spring 18, and a stopper 19. Are inserted in order and attached.

  The base 13 is fixed to the sun visor core 5. The shaft 11 is inserted into holes 13 d and 13 e formed at one end, and has arm portions 13 b and 13 c that are rotatably attached around the shaft 11. Yes. A leaf spring 12 bent in a U shape is attached to the base 13 between the arm portions 13b and 13c. The ends of the arm portions 13b and 13c on the opposite side of the holes 13d and 13e are connected to each other, and the connecting portions are sandwiched by both end portions of the plate spring 12 so that the plate spring 12 is fitted. It is a fitting portion 13f. A fitting portion 11c whose outer diameter changes in a predetermined pattern in the circumferential direction is formed in a portion of the horizontal portion 11e of the shaft 11 where the leaf spring 12 is attached. The leaf spring 12 does not move in the horizontal direction with respect to the shaft 11 by fitting in the fitting portion 11 c of the shaft 11, and therefore the base 13 also in the horizontal direction with respect to the shaft 11. It does not move.

  The lock 14, the first cam 16, and the second cam 17 have a generally cylindrical shape, and the shaft 11 is inserted into and attached to the respective central holes 14d, 16f, and 17f. Among these, a guide groove 17e extending in the horizontal direction is formed on the inner peripheral surface of the hole 17f of the second cam 17, while the shaft 11 extends in the horizontal direction engaging with the guide groove 17e. A protrusion 11b is formed. The protrusion 11b of the shaft 11 is inserted into the guide groove 17 of the second cam 17, so that the second cam 17 slides along the horizontal portion 11e without rotating with respect to the horizontal portion 11e of the shaft 11. Mounted movably. On the other hand, the lock 14 and the first cam 16 are attached so as to be slidable along the horizontal portion 11e and to be rotatable with respect to the horizontal portion 11e.

  An engagement protrusion 13a is formed around the hole 13d in the arm 13b on the side adjacent to the lock 14 of the base 13, and the engagement protrusion 13a is formed on the surface of the lock 14 adjacent to the base 13. An engaging recess 14a that can be engaged is formed. Similarly, an engagement protrusion 14c and an engagement recess 16e that can be engaged with each other are formed on the lock 14 and the first cam 16 that face each other with the first spring 15 interposed therebetween. The opposing surfaces of the first cam 16 and the second cam 17 are cooperating cam surfaces 16d and 17d.

  The stopper 19 is attached so as not to move in the horizontal direction by engaging with a groove 11a formed at the tip of the horizontal portion 11e of the shaft 11. This prevents each member from falling off the horizontal portion 11e of the shaft 11.

  Further, as shown in FIGS. 3 to 8, the above-described button 2 is attached so as to be slidable in the thickness direction of the sun visor core 5 perpendicularly to the horizontal portion 11 e of the shaft 11, and by the spring 23, It is urged toward the surface side. A protrusion 2 b is formed on the inner side of the button 2. At the tip of the protrusion 2b, an inclined surface 2a facing the tip of the horizontal portion 11e of the shaft 11 is formed in the tip direction. In the sun visor core 5, there is provided a block 21 having a slope 21 a that can contact the slope 2 a of the button 2, and supported by a guide 22 so as to be slidable parallel to the horizontal portion 11 e of the shaft 11. Yes. The block 21 is formed with a locking projection 21 b that engages with a concave groove 14 b formed on the outer peripheral surface of the lock 14.

  Next, the operation of the automobile sun visor 1 of the present embodiment will be described.

  First, FIG. 3 shows a state in which the sun visor core 5 is located at a storage position that abuts against the ceiling 4. In this state, the first cam 15, the first cam 16, and the lock 14 are pushed toward the base 13 by the elastic force of the first spring 15 and the second spring 18. The engagement recess 16e of the cam 16 and the engagement protrusion 14c of the lock 14 are engaged, and the engagement recess 14a of the lock 14 and the engagement protrusion 13a of the base 13 are engaged. Accordingly, the first cam 16, the lock 14, and the base 13 are connected so as not to rotate with respect to each other.

  The cam surface 16d of the first cam 16 and the cam surface 17d of the second cam 17 are in contact with the inclined surface 16a and the inclined surface 17a (in this case, the same applies to the opposite side portions that are not visible in FIG. 3). In addition, the slopes of the first cam 16 and the second cam 17 are in contact with each other, and in the following description, similarly, interference occurs between the cam surfaces 16d and 17d even in a portion that is not visible in the figure. Only the visible part will be described as a representative). Since the second cam 17 is movable only in the horizontal direction without rotating with respect to the shaft 11 as described above, the interference between the cam surfaces 16d and 17d causes the second spring 18 to move. As shown by an arrow in FIG. 3, the urging force is the rotational torque of the first cam 17, the lock 14 and the base 13 that are connected so as not to rotate, and the sun visor core 5 to which the base 13 is fixed. It has been converted. In other words, in the present embodiment, the second spring 18 and the first and second cams 16 and 17 constitute a rotational torque generating means, and the second cam 17 serves as a rotational torque output member, and the lock 14 The base 13 forms a transmission path for transmitting the rotational torque to the sun visor core 5.

  At this time, the direction of the rotational torque generated by the rotational torque generating means is the direction in which the sun visor core 5 is rotated in the direction in which the sun visor core 5 is brought into contact with the ceiling 4 of the automobile. The sun visor core 5 is held at the storage position by being urged to rotate by this rotational torque. Thus, the first spring 15 has a relatively strong predetermined elastic force so that the sun visor core 5 can be stably held in the storage position.

  Next, FIG. 4 shows a state immediately after the button 2 is pressed from the state of FIG. When the button 2 is pressed, the block 21 slides toward the distal end side of the horizontal portion 11e of the shaft 11, so that the lock 14 with which the block 21 is engaged is slid. As a result, the engagement protrusion 13a of the base 13 is disengaged from the engagement recess 14a of the lock 14, and therefore, the base 13 and thus the sun visor core 5 is released from the applied rotational bias and can rotate freely. become. That is, in this embodiment, the lock 14, the first spring 15, and the operation means constituted by the button 2, the block 21, and the guide 22 constitute a rotational torque transmission path blocking means.

  At this time, since the elastic force of the second spring 18 is converted into the rotational torque of the sun visor core 5 as described above, it is necessary to ensure a predetermined strength, but the first spring 15 The elastic force of the second spring 18 can be made smaller than the elastic force of the second spring 18. Thus, by making the elastic force of the 1st spring 15 comparatively small, the operation load of the button 2 can be suppressed and operation can be facilitated, which is preferable. Also in the example shown in FIG. 4, the elastic force of the first spring 15 is set to be smaller than the elastic force of the second spring 18, so that the first and second cams 16, 17 almost move. Only the lock 14 is moving.

  Next, when the sun visor core 5 becomes freely rotatable as described above, it rotates by its own weight as shown in FIG. At this time, since the first cam 16 and the lock 14 receive the rotational torque in the same direction as that before the base 13 and the lock 14 are disengaged from the rotational torque generating means, the sun visor core 5, that is, the base 13 It rotates in the opposite direction to the direction of rotation. Also, the base 13, the lock 14, and the first lock 15, which are biased by the first spring 15, come into contact with the engagement protrusions 13 a of the base 13 by the slope of the surface facing the base 13. This relative rotation with cam 16 is facilitated.

  As shown in FIG. 6, the sun visor core 5 and the base 13 fixed to the sun visor core finally rotate to a position where the sun visor core 5 hangs down straight from the shaft 11, and therefore, the sun visor core 5 and the base 13 fixed to the sun visor core 5 rotate 90 degrees and stop. At this time, the first cam 16 and the lock 14 are also rotated in the opposite directions. As a whole, when the base 13 and the lock 14 are rotated 180 degrees with respect to each other, the engagement protrusion 13a of the base 13 becomes the engagement recess 14a of the lock 14. Engage again. In this manner, the sun visor core 5 rotates to the position where it hangs down straight from the shaft 11, and the cam surface 16 d of the first cam 16 and the cam of the second cam 17 with the base 13 and the lock 14 re-engaged. On the surface 17d, the convex portion 16b of the first cam 16 and the flat portion 17b of the second cam 17 face each other. For this reason, the rotational torque generating means does not generate rotational torque, and the sun visor core 5 has no rotational torque in spite of being connected to the rotational torque transmission path from the rotational torque generating means. It is in a state where it does not participate.

  Next, FIG. 7 shows a state in which the occupant further rotates the sun visor core 5 toward the front window 3 from the state in which the sun visor core 5 hangs down straight. At this time, although not shown in detail, the sun visor core 5 tries to rotate by its own weight by the leaf spring 12 coming into contact with the portion of the fitting portion 11c of the shaft 11 where the outer diameter is relatively large. This creates a frictional force that can be overcome, thereby allowing the sun visor core 5 to stop at any desired position. At this time, there is a certain distance from the position of the convex portion 16b of the first cam 16 to the convex portion around the flat portion 17b of the second cam 17, and the slope of the convex portion 16b of the first cam 16 is Until the second cam 17 abuts against the slope of the convex portion, the rotational torque generating means does not generate rotational torque, and the position holding of the sun visor core 5 is not hindered. Accordingly, the sun visor core 5 can be stopped at an arbitrary position within a certain angular range, for example, 90 to 145 degrees from the storage position.

  Thus, in this embodiment, the leaf spring 12 and the fitting portion 11c of the shaft 11 constitute an angular position holding means. By allowing the sun visor core 5 to be held at an arbitrary angular position, the occupant can adjust the angular position of the sun visor core 5 as appropriate so that the sun visor core 5 can obtain an anti-glare action. The maximum can be secured. In addition, by setting the outer peripheral shape of the fitting portion 11c of the shaft 11 to an appropriate shape, the leaf spring 12 is fitted to the fitting portion 11c at a predetermined angular position, for example, at a position where the sun visor core 5 hangs down straight. The sun visor core 5 may be stabilized at the angular position so as to come into contact with the flat surface portion, and a sense of moderation may be given to the rotation operation of the sun visor core 5, thereby improving the operability. Can do. When the sun visor core 5 rotates from the storage position to the position where it hangs down, the leaf spring 12 contacts the portion of the fitting portion 11c of the shaft 11 where the outer diameter is relatively small. Therefore, the operation of rotating the sun visor core 5 to the position where the sun visor core 5 hangs down is not hindered by the angular position holding means.

  Next, FIG. 8 shows a state where the occupant is returning the sun visor core 5 to the storage position side from the state where the sun visor core 5 hangs down straight. When the sun visor core 5 is rotated in this way, the elastic force of the second spring 18 causes the inclined surface 16c of the cam surface 16d of the first cam 16 and the second cam 17 until the intermediate angle position is reached. When the inclined surface 17c of the cam surface 17d contacts, it is converted into rotational torque, and the direction of this rotational torque acts in a direction to return the sun visor core 5 to the position where it dangles. However, when the sun visor core 5 is rotated beyond this intermediate angular position, the convex portion 16b of the first cam 16 gets over the inclined surface 17c, and the direction of the rotational torque is reversed, that is, the sun visor core 5 is stored. Rotational torque is applied in the direction of rotation to the position. As a result, even if the passenger releases the hand, the sun visor core 5 rotates to the storage position and is held at the storage position.

  According to the present embodiment described above, the shaft 11 can be moved from the storage position in contact with the ceiling 4 by operating the button 2 without applying a force for directly rotating the sun visor core 5 to the sun visor core 5. It can be rotated to a use position that hangs down from the horizontal portion 11e. Therefore, it is not necessary for the occupant to perform an operation of rotating the sun visor core 5 by applying force until the sun visor core 5 is moved from the storage position to the use position, and good operability can be obtained. Further, the sun visor core 5 can be easily used in the storage recess 6 of the ceiling 4 at the storage position, even if the sun visor core 5 fits into the storage recess 6 without a large gap between the side edge of the storage recess 6. Can be rotated. With such a configuration, when the sun visor core 5 is positioned at the storage position, the sun visor core 5 and the ceiling 4 appear to be integrated, and the interior of the automobile when the sun visor core 5 is stored. The design property of can be made excellent.

  Furthermore, in the configuration of the present embodiment, the sun visor core 5 is urged to rotate toward the ceiling 4 and is held in the storage position. Therefore, in order to hold the sun visor core 5 in the storage position, There is no need to provide a locking member or a locking device on the exposed portion of the storage recess 6 or the sun visor core 5. For this reason, the design property when the sun visor core 5 is rotated to the use position can be excellent.

  Note that this embodiment exemplifies the present invention, and various modifications are possible within the scope of the present invention.

  For example, since the vehicle sun visor 1 of the present embodiment is configured to be held at the storage position that abuts against the ceiling 4 in a rotationally biased state, the occupant can operate the sun visor core without operating the button 2. It is also possible to apply a force directly to 5 and rotate it to the use position. Therefore, the automobile sun visor 1 of the present embodiment can be suitably used for an automobile in which the storage recess 6 is not provided in the ceiling 4.

  In the present embodiment, an example in which a part of the rotational torque generating means and the rotational torque transmission path blocking means is configured by a member inserted into the horizontal portion 11e of the shaft 11 is shown. The rotational torque may be transmitted to the shaft 11 via a gear device or the like. As in the present embodiment, a configuration using a member inserted through the horizontal portion 11e of the shaft 11 is preferable because the arrangement space of these means can be kept small.

  The lock 14 and the arm portion 13b are configured to be engaged again when they are rotated 180 degrees after being disengaged, but generally, the lock 14 and the arm portion 13b are connected, that is, the sun visor core 5 is connected to the sun visor core 5. When the rotational torque transmission path is connected, the rotational torque generating means exceeds the intermediate angular position where the rotational torque is not generated in the direction of rotationally urging the sun visor core 5 to the storage position. When rotating, the transmission path of the rotational torque can be reconnected. In other words, in this way, when the rotational torque transmission path is reconnected, the sun visor core 5 can reach the use position without being returned to the stowed position. When the core 5 is rotated to the storage position side, the sun visor core 5 can be rotated to the storage position and the rotational torque to be held can be applied again.

  In the present embodiment, the rotational torque generating means rotates to the position where the sun visor core 5 is suspended while the sun visor core 5 is positioned between the intermediate angle position and the position depending on the shaft 11. The configuration for generating the rotational torque in the direction to be generated is shown. According to this configuration, the rotational torque at this time helps to stably hold the sun visor core 5 in the suspended position, which is preferable. However, at this time, the rotational torque may not be generated.

1 is a perspective view of an interior of an automobile equipped with an automobile sun visor according to an embodiment of the present invention. It is a disassembled perspective view of the shaft part of the sun visor for motor vehicles of FIG. FIG. 3 is a view showing a state where the automobile sun visor of FIG. 1 is in a storage position, FIG. 3A shows a state of a shaft portion at this time, and FIG. 3B shows a state of a sun visor core. It is a figure which shows the state immediately after pushing a button from the state of FIG. 3, Fig.4 (a) has shown the state of the shaft part at this time, FIG.4 (b) has shown the state of the sun visor core. It is a figure which shows the state which the sun visor core is rotating with dead weight from the state of FIG. 4, FIG. 5 (a) shows the state of the shaft part in this case, FIG.5 (b) shows the state of the sun visor core. ing. It is a figure which shows the state which the sun visor core rotated 90 degree | times from the storing position, and stopped, FIG. 6 (a) shows the state of the shaft part at this time, FIG.6 (b) shows the state of the sun visor core. Yes. It is a figure which shows the state which rotated the sun visor core further to the front window side from the state shown in FIG. 6, (a) is the state of the shaft part at this time, FIG.7 (b) is a state of a sun visor core. Indicates the state. FIGS. 8A and 8B are diagrams illustrating a state when the sun visor core is rotated in the storage position direction from the state illustrated in FIG. 7. FIG. 8A is a state of the shaft portion at this time, and FIG. The state of the core is shown. It is a perspective view of the interior of a car equipped with a conventional sun visor.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car sun visor 2 Button 2a, 16a, 16c, 17a, 17c, 22b Slope 2b Protrusion 3 Front window 4 Ceiling 5 Sun visor core 11 Shaft 11a Groove 11b Protrusion 11c, 13f Fitting part 11d Vertical part 11e Horizontal part 12 leaf spring 13 base 13a, 14c engaging protrusion 13b, 13c arm portion 13d, 13e, 14d, 16f, 17f hole 14 lock 14a, 16e engaging recess 14b recessed groove 15 first spring 16 first cam 16b convex portion 16d, 17d Cam surface 17 Second cam 17b Planar portion 17e Guide groove 18 Second spring 19 Stopper 21 Block 21b Locking projection 22 Guide

Claims (8)

In a vehicle sun visor having a shaft attached to a ceiling in a vehicle interior, and a sun visor core that functions as a light shielding plate, the shaft being inserted into one side edge portion and supported rotatably around the shaft.
Rotation torque generating means for generating a rotation torque for rotating the sun visor core in a direction in which the sun visor core is in contact with the ceiling in a state where the sun visor core is located at a storage position in contact with the ceiling;
A vehicle sun visor comprising: a rotation torque transmission path blocking means for blocking a transmission path for transmitting the rotation torque generated by the rotation torque generation means to the sun visor core.   When the transmission path of the rotational torque is interrupted by the rotational torque transmission path blocking means from the state where the sun visor core is held at the storage position by the rotational torque generated by the rotational torque generation means, The automobile sun visor according to claim 1, wherein the sun visor is rotated to a position where it hangs down straight.   The angle at which the sun visor core is held when the sun visor core is further rotated in the same direction as rotating from the storage position to the position depending from the shaft rather than from the position depending from the shaft. The sun visor for automobiles according to claim 1 or 2, further comprising position holding means.   The rotational torque generating means is configured to connect the sun visor core from the storage position to a predetermined intermediate angle position on the way from the shaft to a position where the sun visor core hangs down straight from the shaft in a state where the rotational torque transmission path is connected. In the state where the sun visor core is in the storage position, the rotational torque is generated in the same direction as when the sun visor core is located in the storage position, and the predetermined angle range after the sun visor core exceeds the intermediate angle position. When the sun visor core is in the storage position, the rotational torque is generated in the opposite direction to that when the sun visor core is located at the storage position, or the rotational torque is not generated. 4. The connection according to claim 1, wherein the sun visor core is connected again when the sun visor core rotates beyond the intermediate position after being blocked by the path blocking means. 5. Automotive sun visor described.   The rotational torque generating means is configured such that the sun visor core is positioned at the storage position when the sun visor core is at an angular position between the intermediate position and a position where the sun visor core is suspended straight from the shaft. 5. The automobile sun visor according to claim 4, wherein a rotational torque is generated in a direction opposite to that when the sun visor core is in a position and the sun visor core is in a position where the sun visor core hangs down straight from the shaft.   The automobile according to any one of claims 1 to 5, wherein the rotational torque generating means includes a spring that generates an urging force in a linear direction and a cam that converts the urging force of the spring into a rotational torque. For sun visor. The spring and the cam are arranged to be inserted through the shaft, and the cam has a rotational torque output member that rotates around the shaft and outputs the rotational torque,
The rotational torque transmission path blocking means is
The shaft is inserted through the shaft, is connected to the rotational torque output member so as not to rotate, and is slidable along the shaft. A lock that can be engaged with the visor core so as not to rotate and a state in which the engagement with the sun visor core is released;
A spring that biases the lock in a direction to engage the sun visor core;
The vehicle sun visor according to claim 6, further comprising operating means for moving the lock in a direction to release the engagement with the sun visor core against an urging force of the spring.   The automobile sun visor according to claim 7, wherein an elastic force of the spring of the rotational torque transmission path blocking means is smaller than an elastic force of the spring of the rotational torque generating means.

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