JP2007131168A - Sun visor for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique for contributing to an improvement in the slide-ability of a sliding mechanism to be provided between a sun visor body and a spindle of the sun visor for a vehicle. <P>SOLUTION: The sun visor 101 for the vehicle comprises the sun visor body 103, the spindle 105 for mounting the sun visor body on the vehicle side, a long sliding passage 113 which is provided on the sun visor body 103 and is made of metallic material, a metallic sliding portion 117 which grips the spindle 105 so as to relatively turn while applying an elastic force to the spindle 105, and slides in the sliding passage 113, and a leaf spring portion 116d formed to be integrated with the sliding portion 117. The leaf spring portion 116d comprises resinoid members 119 integratedly formed at least on the surface of the leaf spring portion 116d opposed to the wall surface 113b of the sliding passage 113, and also comes into elastic sliding contact with the wall surface 113b of the sliding passage 113 via the resinoid members 119 integrated with the leaf spring portion 116d. As a result, a required sliding resistance is applied to the portion between the sliding portion 117 and the sliding passage 113 while avoiding the sliding contact between metallic elements. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle sun visor.

  The vehicle sun visor is mounted on the ceiling surface of the passenger compartment via a substantially L-shaped support shaft, and is placed along the ceiling surface of the passenger compartment by rotating around the horizontal shaft portion of the support shaft. And the arrangement position is changed between the light shielding position placed along the windshield. The vehicle sun visor is linearly movable relative to the horizontal axis of the support shaft in the axial direction of the horizontal axis. It is possible. Such a vehicle sun visor having a function of changing the arrangement position and a function of adjusting the position in the horizontal direction is disclosed in, for example, Japanese Patent Application Laid-Open No. 62-191218 (Patent Document 1).

However, in the conventional vehicle sun visor, there is still room for improvement in terms of the slidability of the sliding mechanism for adjusting the position in the horizontal direction.
Japanese Patent Laid-Open No. 62-191218

  In view of the above, an object of the present invention is to provide a technique that contributes to an improvement in the slidability of a sliding mechanism set between a sun visor body and a support shaft in a vehicle sun visor.

In order to achieve the above object, the invention described in each claim is configured.
According to the first aspect of the present invention, a sun visor body, a support shaft for mounting the sun visor body on the vehicle side, a long slide path provided on the sun visor body and formed of a metal material, and a support shaft The vehicle sun visor is configured to have a metal sliding portion that is slidably disposed in the sliding path while gripping the support shaft in a relatively rotatable manner while exerting a resilient force against The The sun visor body is mounted on the vehicle side, for example, on the ceiling of the passenger compartment via a support shaft. In this invention, the sliding part arrange | positioned in the sliding path of a sun visor main body grips a spindle so that relative rotation is possible. For this reason, the sun visor body can be rotated around the support shaft in a state of being mounted on the vehicle ceiling, for example, on the ceiling of the vehicle compartment via the support shaft. The arrangement position of the sun visor main body is changed between the retracted position along the passenger compartment ceiling surface and the light shielding position along the windshield by this turning operation. The “sliding path” in the present invention is typically formed in a horizontal direction along the upper edge portion of the sun visor body placed at a light shielding position lowered from the ceiling of the passenger compartment. Is configured to slide through the sliding portion. Therefore, in a state where the sun visor body is mounted on the vehicle side, the sun visor body moves relative to the support shaft in the axial direction, thereby adjusting the horizontal position (light shielding position).

The vehicle sun visor according to the present invention has a leaf spring portion integrally formed on a metal sliding portion as a characteristic configuration. The leaf spring portion has a resin material integrally formed on the surface of the spring portion on the side facing the wall surface of the sliding path, and slides through the resin material integrated with the spring portion. It is configured such that a predetermined sliding resistance is applied between the sliding portion and the sliding path while sliding in a resilient manner on the wall surface of the road, thereby avoiding sliding contact between metals. In the present invention, the “plate spring portion” is, for example, in the case where the sliding path is composed of four wall surfaces of the upper, lower, left, and right sides in the circumferential direction, and is in a state of slidingly contacting one of the wall surfaces or facing each other. Any of the modes of sliding contact with two wall surfaces, or the modes of sliding contact with three wall surfaces, or all the wall surfaces is also suitably included.
According to the present invention, the leaf spring portion provided in the sliding portion is slidably contacted with the wall surface of the sliding path through the resin material, thereby avoiding sliding contact between the metal and the sliding portion. It is configured to give a predetermined sliding resistance between the sliding paths. As a result, the metal slides while stabilizing the sliding load when the sliding part slides on the sliding path. It is possible to solve problems such as galling or abnormal noise that are likely to occur during operation, and to improve the slidability when adjusting the position of the sun visor body. In the present invention, since the leaf spring portion is formed in the grip portion, the number of parts is reduced and the number of assembling steps is reduced as compared with the case where the leaf spring portion is formed of a member different from the sliding portion, for example. Is also reduced. In the case of “forming the resin material integrally on the surface of the leaf spring portion”, it is possible to integrally form the resin material on a part of the surface of the leaf spring portion, but the entire surface of the leaf spring portion It is preferable to form it integrally so as to cover. In addition, as a method of “forming the resin material integrally”, an embodiment in which the resin coating agent is applied to the leaf spring portion, or a resin sheet or a resin panel is bonded or welded to the leaf spring portion. And the like that are formed integrally with each other. As the resin material, it is preferable to have characteristics such as wear resistance and non-adhesiveness. For example, polyethylene resin, nylon resin, polyacetal resin (POM), urethane resin, fluororesin, thermoplastic resin and the like are preferably used. However, other resins are preferably included.

(Invention of Claim 2)
According to the invention described in claim 2, the sliding portion in the vehicle sun visor described in claim 1 has a lower surface, both side surfaces, and an upper surface, and is provided on at least one of the lower surface, both side surfaces, and the upper surface. The plate spring portion is set, and the surface where the plate spring is not set has a protrusion that protrudes toward the wall surface side of the sliding path at a predetermined height and whose protruding side surface is covered with a resin material. And a protrusion is set as the structure which contacts the wall surface of a sliding path via a resin material, and the motion of the direction which cross | intersects the sliding direction of the sliding part with respect to a sliding path is suppressed by this. According to the present invention, it is possible to suppress backlash in the direction intersecting the sliding direction while stabilizing the sliding load between the sliding portion and the sliding path by the joint action of the leaf spring portion and the protruding portion, Since the resin material is in sliding contact with the metal sliding path, problems such as galling or abnormal noise that easily occur when the metals are in sliding contact with each other can be solved, and a smooth sliding operation can be realized.

  ADVANTAGE OF THE INVENTION According to this invention, the technique which contributes to the improvement of the slidability of the sliding mechanism set between the sun visor main body in a vehicle sun visor and a spindle was provided.

  Hereinafter, a vehicle sun visor according to an embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 schematically shows the overall configuration of the vehicle sun visor according to the present embodiment. As shown in FIG. 1, a vehicle sun visor 101 according to the present embodiment generally includes a sun visor main body 103 that forms an outer shape of the sun visor 101 and a support shaft for mounting the sun visor main body 103 on the vehicle. 105 as a main component. The support shaft 105 is formed in a substantially L shape having a vertical axis portion 105a extending in a substantially vertical direction and a horizontal shaft portion 105b extending in a generally horizontal direction. The horizontal shaft portion 105 b of the support shaft 105 is rotatably mounted on the upper edge portion of the sun visor body 103, and the vertical shaft portion 105 a of the support shaft 105 is connected to the front corner of the ceiling surface of the passenger compartment via the mounting bracket 107. It is rotatably mounted on the part.

  As described above, the sun visor 101 mounted on the ceiling surface of the passenger compartment via the support shaft 105 is rotated around the axis of the horizontal shaft portion 105b of the support shaft 105 so as to follow the ceiling surface of the passenger compartment. It is possible to change the arrangement position between the storage position placed on the camera and the light shielding position placed along the windshield. Moreover, the sun visor 101 can change the arrangement position between the front position and the side position along the side glass by rotating around the vertical axis portion 105 a of the support shaft 105.

  Further, the sun visor body 103 is slidable in the axial direction of the horizontal shaft portion 105b via the sliding mechanism 111 with respect to the horizontal shaft portion 105b of the support shaft 105, thereby enabling horizontal position adjustment. . Hereinafter, the sliding mechanism 111 set between the sun visor body 103 and the support shaft 105 will be described with reference to FIGS. FIG. 2 is an exploded view showing each constituent member constituting the sliding mechanism 111, and FIGS. 3 and 4 are sectional views showing the assembled state of each constituent member.

  The sliding mechanism 111 according to the present embodiment grips the cylindrical member 113 fixed to the sun visor main body 103 and the support shaft 105 so as to be relatively rotatable, and in the cylindrical hole 113a of the cylindrical member 113. It is mainly composed of a spindle clamp 117 that slides relatively. The cylindrical member 113 corresponds to the “sliding path” in the present invention, and the support shaft clamp 117 corresponds to the “sliding portion” in the present invention.

  Although the illustration of the sun visor body 103 is omitted, for example, a half shell structure is formed by joining two half-divided body constituent members arranged opposite to each other, and the surface is covered with a skin. After the foam molding with a material such as foamed urethane or the like, the surface is covered with a skin. The sun visor main body 103 has an internal space for accommodating the tubular member 113 on the upper edge side when placed at the light shielding position, and the tubular member 113 is accommodated in a fixed state in the internal space. The cylindrical member 113 is made of a metal material and is formed in a long shape extending linearly along the upper edge portion of the sun visor body 103 (see the broken line in FIG. 1).

  The support shaft clamp 117 includes a metal clamp body 116 having a substantially arched shape (inverted U shape) in cross section, and a metal spring member 118 disposed on the open side of the clamp body 116. The horizontal shaft portion 105b is gripped so as to be relatively rotatable while applying a resilient force from the radial direction to the horizontal shaft portion 105b of the support shaft 105 inserted between the main body 116 and the spring member 118. The

  The spring member 118 integrally includes a substrate portion 118a and first and second elastic deflecting portions 118b extending substantially in an S shape upward from both ends of the substrate portion 118a (see FIG. 2). A predetermined elastic force, that is, a gripping force is applied to the horizontal shaft portion 105b by the elastic bending of the first and second elastic bending portions 118b. The spring member 118 has a plurality of locking claws 118c on the board portion 118a, and the locking claws 118c are locked by openings 116b formed on the side wall plates 116a of the clamp body 116 that face each other. The clamp body 116 is fixed.

  The support shaft clamp 117 configured as described above is disposed in the tube hole 113 a of the tubular member 113, and is configured to slide relative to the tubular member 113 together with the support shaft 105. As a result, the sun visor main body 103 can be adjusted in the horizontal direction relative to the support shaft 105 through the relative movement of the cylindrical member 113 and the support shaft clamp 117 in the axial direction, and the horizontal shaft portion 105b of the support shaft 105 can be adjusted. It is possible to change the arrangement between the storage position and the light-shielding position through relative movement in the circumferential direction between the shaft clamp 117 and the spindle clamp 117.

  The clamp body 116 of the support shaft clamp 117 is disposed so that the side wall plate 116a is located on both sides in the moving direction. That is, the side wall plates 116a are opposed to each other across the movement axis of the clamp body 116, and each side wall plate 116a is formed with substantially rectangular plate springs 116d at four locations, top, bottom, left and right. The side wall plate 116a corresponds to the “side surface” in the present invention, and the leaf spring 116d corresponds to the “plate spring portion” in the present invention. Each leaf spring 116d is formed into a cut-and-raised shape that is continuous with the side wall plate 116a by performing, for example, a substantially horizontal U-shaped cut and bending process on the side wall plate 116a, and the outer surface of the side wall plate 116a. It protrudes outside at a predetermined height. A resin coating layer 119 is integrally formed on the entire outer surface of each leaf spring 116d that faces the inner wall surface 113b of the cylindrical member 113. That is, each leaf spring 116d slidably contacts the inner wall surface 113b of the tubular member 113 with a predetermined width on the inner wall surface 113b of the tubular member 113 via the resin coating layer 119 that covers the outer surface of the leaf spring 116d. A predetermined sliding resistance is applied between the member 113 and the support shaft clamp 117. The resin coating layer 119 corresponds to the “resin material” in the present invention. The resin coating layer 119 is integrally formed by, for example, applying a resin coating agent to the leaf spring 116d. Instead of the resin coating layer 119, for example, a resin sheet or a resin panel is formed on the outer surface of the leaf spring 116d. They may be formed integrally by bonding or welding.

  Further, as shown in FIG. 3, a plurality of projections 116f and 118f are formed on the outer surface of the top wall 116e constituting the arcuate wall of the clamp body 116 and the outer surface of the substrate portion 118a of the spring member 118, respectively. Has been. The top wall 116e corresponds to the “upper surface” in the present invention, and the substrate portion 118a corresponds to the “lower surface” in the present invention. On the surface (outer surface) of each protrusion 116f, 118f, although not shown for convenience, a resin coating layer similar to the resin coating layer 119 covering the leaf spring 116d is integrally formed. That is, each protrusion 116f, 118f is configured to slide while being in contact with the inner wall surface 113b of the cylindrical member 113 via the resin coating layer. In addition, the contact area of each protrusion 116f and 118f is smaller than the contact area of leaf spring 116d.

  The sun visor 101 according to the present embodiment is configured as described above. When the sun visor 101 according to the present embodiment is used by lowering the sun visor body 103 from the storage position to the light-shielding position by rotating the sun visor main body 103 around the horizontal shaft portion 105b of the support shaft 105, as shown in FIG. Further, the horizontal position of the sun visor 101 can be adjusted by sliding the sun visor main body 103 in the axial direction along the horizontal shaft portion 105 b of the support shaft 105. The horizontal position adjustment of the sun visor 101 can be performed at either the front position where the sun visor 101 is placed on the windshield side or the side position where the sun visor 101 is placed on the side glass side.

  In the present embodiment, a leaf spring 116d is cut and raised on the opposing side wall surface 116a of the clamp body 116, and this leaf spring 116d is provided on the inner wall surface 113b of the tubular member 113 via the resin coating layer 119. It is configured to be slid in contact with a bullet shape. Thereby, the sliding load of the spindle clamp 117 with respect to the cylindrical member 113 is stabilized, and the sliding property at the time of position adjustment of the sun visor 101 is improved. Further, since the leaf springs 116d are arranged on both sides in the sliding direction, it is more effective in stabilizing and smoothing the sliding operation. Further, since the resin coating layer 119 formed integrally with the leaf spring 116d is in sliding contact with the inner wall surface 113a of the metallic cylindrical member 113, galling or noise that is likely to occur when the same material slides. It is possible to eliminate problems such as the occurrence of

In the present embodiment, the leaf spring 116d is formed integrally with the clamp body 116. As a result, the number of parts can be reduced as compared with a configuration in which the spring is set as a separate part and assembled to the clamp body. As a result, the number of assembling steps can be reduced, productivity can be improved, and cost can be reduced.
In the present embodiment, the wall surface without the leaf spring 116d, that is, the top wall 116e of the clamp body 116 and the substrate portion 118a of the spring member 118 are provided with protrusions 116f and 118f covered with a resin coating layer. 116f and 118f are configured to slide in contact with the inner wall surface 113b of the cylindrical member 113 through the resin coating layer. As a result, the support clamp 117 is restrained from moving (backlash) in the direction intersecting the sliding direction with respect to the tubular member 113 by the leaf spring 116d and the projections 116f and 118f, and the support clamp 117 and the tubular member. It is possible to stabilize the sliding operation relative to 113.

Next, a modified example of the sliding mechanism 111 according to the above-described embodiment will be described. In the above-described embodiment, the leaf spring 116d is configured to be cut and raised on the side wall plates 116a facing each other in the clamp body 116. However, such a configuration can be changed as follows.
In the modification shown in FIG. 5, the leaf spring 116d is formed in a cut-and-raised shape on the top wall 116e of the clamp body 116, and protrudes upward from the upper surface of the top wall 116e. FIG. 5 shows a case where two leaf springs 116d are arranged in parallel in the sliding direction of the support shaft clamp 117, but it is also possible to set the number to four as in the case of the embodiment. A resin coating layer 119 is integrally formed on the outer surface of the leaf spring 116d, that is, the sliding surface with the inner wall surface 113b of the tubular member 113. The leaf spring 116d is slidably contacted with the upper inner wall surface 113b of the cylindrical member 113 through a resin coating layer 119 in a resilient manner around a plane having a predetermined width, whereby the cylindrical member 113 and the spindle clamp 117 are connected. It is set as the structure which provides predetermined | prescribed sliding resistance to. According to the modified example configured as described above, the same operational effects as those of the above-described embodiment can be obtained.

  In the modification shown in FIG. 6, leaf springs 116 d are formed at respective end portions in the sliding direction of the side wall plate 116 a of the clamp body 116 so as to face each other across the movement line. The leaf spring 116d is extended by a predetermined length in the sliding direction of the clamp body 116, and protrudes outside the outer surface of the side wall plate 116a at a predetermined height. A resin coating layer 119 is integrally formed on the outer surface of the leaf spring 116d. The leaf spring 116d is slidably contacted with the inner wall surface 113b of the cylindrical member 113 through a resin coating layer 119 in a resilient manner around a plane having a predetermined width, and thereby, between the cylindrical member 113 and the support shaft clamp 117. It is set as the structure which provides predetermined | prescribed sliding resistance. According to the modified example configured as described above, the same operational effects as those of the above-described embodiment can be obtained.

  In the modification shown in FIG. 7, the leaf spring 118 d is formed using the spring member 118 in the support shaft clamp 117. That is, the leaf spring 118d is cut and raised on the substrate portion 118a of the spring member 118. Since the board portion 118a has a flat surface facing the lower inner wall surface 113b of the cylindrical hole 113a of the cylindrical member 113, the flat spring 118d is set using the flat surface. Although FIG. 7 shows a case where two leaf springs 116d are arranged in parallel in the moving direction, the number can be set to four as in the case of the embodiment. The leaf spring 118d protrudes at a predetermined height downward from the lower surface of the substrate portion 118a, and a resin coating layer 119 is integrally formed on the outer surface thereof. The leaf spring 118d is slidably contacted with the lower inner wall surface 113b of the cylindrical member 113 through a resin coating layer 119 in a resilient manner around a plane having a predetermined width, and thereby, between the cylindrical member 113 and the support shaft clamp 117. It is set as the structure which provides predetermined | prescribed sliding resistance to. According to the modified example configured as described above, the same operational effects as those of the above-described embodiment can be obtained.

  In the modification shown in FIG. 8, the setting of the leaf spring 118d in the modification shown in FIG. 7 is changed so that one leaf spring 118d is set over the entire board portion 118a. The leaf spring 118d is formed in a cut-and-raised shape on the substrate portion 118a, protrudes at a predetermined height below the lower surface of the substrate portion 118a, and a resin coating layer 119 is integrally formed on the outer surface thereof. Yes. The leaf spring 118d is slidably contacted with the lower inner wall surface 113b of the cylindrical member 113 through a resin coating layer 119 in a resilient manner around a plane having a predetermined width, and thereby, between the cylindrical member 113 and the support shaft clamp 117. It is set as the structure which provides predetermined | prescribed sliding resistance to. The configuration in which one leaf spring 118d is set in one surface region as described above is not limited to the spring member 118, but the side wall plate 116a of the clamp body 116 in the above-described embodiment or the top wall 116e shown in FIG. Can also be implemented.

Each modified example can be implemented by itself, or can be implemented in combination with the embodiment or other modified examples as appropriate. For example, the modification example shown in FIG. 5 is combined with the modification example shown in FIG. 7 or FIG. 8, the embodiment shown in FIG. 2 is combined with the modification example shown in FIG. 5, the embodiment shown in FIG. Or, it may be combined with the modification shown in FIG.
Further, the above-described embodiment or modification is not limited to the illustrated structure, and at least one leaf spring 116d, 118d is provided on one surface facing the inner wall surface 113b of the cylindrical member 113. Good. The leaf springs 116d and 118d may be provided on one of the four surfaces of the support shaft clamp 117, that is, the four surfaces facing the inner wall surface 113b of the tubular member 113.
The resin coating layer 119 is formed on the plate springs 116d and 118d and the protrusions 116f and 118f. However, the resin coating layer 119 is formed on either one of the clamp body 116 or the spring member 118 constituting the support shaft clamp 117, or on the whole of both. Also good.

1 is a front view showing a schematic configuration of a vehicle sun visor according to an embodiment of the present invention. It is a perspective view which decomposes | disassembles and shows the structural member of a sliding mechanism. It is sectional drawing of the direction which cross | intersects a sliding direction. It is sectional drawing based on the AA line of FIG. It is a perspective view which shows the example of a change of a sliding mechanism. It is a perspective view which shows the other example of a change of a sliding mechanism. It is a perspective view which shows the other example of a change of a sliding mechanism. It is a perspective view which shows the other example of a change of a sliding mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Vehicle sun visor 103 Sun visor main body 105 Support axis 105a Vertical axis part 105b Horizontal axis part 107 Mounting bracket 111 Sliding mechanism 113 Cylindrical member 113a Inner wall surface 116 Clamp main body 116a Side wall board 116b Opening part 116c Locking claw 116d Plate Spring 116e Top wall 116f Protrusion 117 Support shaft clamp 118 Spring member 118a Substrate part 118b Elastic deflection part 118c Locking claw 118d Leaf spring 118f Protrusion

Claims (2)

The sun visor itself,
A spindle for mounting the sun visor body on the vehicle side;
A long sliding path provided in the sun visor body and formed of a metal material;
A metal sliding portion that slides in the sliding path while gripping the supporting shaft in a relatively rotatable manner while applying a resilient force to the supporting shaft;
A leaf spring portion formed integrally with the sliding portion,
The leaf spring portion has a resin material integrally formed on the surface of the spring portion on the side facing the wall surface of the sliding path, and through the resin material integrated with the spring portion. It is characterized in that a predetermined sliding resistance is applied between the sliding portion and the sliding path while sliding in a sliding manner on the wall surface of the sliding path, thereby avoiding sliding contact between metals. A vehicle sun visor. The vehicle sun visor according to claim 1,
The sliding portion has a lower surface, both side surfaces, and an upper surface, and is a surface on which at least one of the lower surface, both side surfaces, and the upper surface is set with the leaf spring portion and not with the leaf spring. Has a protrusion that protrudes toward the wall surface side of the sliding path at a predetermined height, and the protrusion-side surface is covered with a resin material, and the protrusion is slid through the resin material. A vehicle sun visor configured to be in contact with a wall surface of a moving path, thereby suppressing movement in a direction intersecting a sliding direction of the sliding portion with respect to the sliding path.

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