JP2004034810A - Sun visor for vehicles - Google Patents

Abstract

An object of the present invention is to provide a sun visor for a vehicle that has a good adjustment feeling when the sun visor body is slid in the axial direction of a support shaft and has a simple configuration.
A sun visor for a vehicle includes a sun visor main body, a support shaft, and a bearing member. The sun visor body 2 is mounted rotatably around the axis of the support shaft 3 via the bearing member 5 and mounted so as to be slidable in the axial direction of the support shaft 3. On the upper edge of the sun visor main body 2, a long hole-shaped accommodation section 6 is provided. The support shaft 3 and the bearing member 5 are accommodated so as to be movable in the longitudinal direction of the accommodation portion 6. The bearing member 5 is provided in the longitudinal direction of the housing 6, a bearing portion 5 a that rotatably holds the support shaft 3, a rotation resistance applying portion 12 that elastically abuts around the shaft of the support shaft 3. A sliding contact member 20 that comes into sliding contact with the slide groove 16 is integrally provided.
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sun visor for a vehicle including a sun visor main body mounted around a support shaft via a bearing member.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a vehicle sun visor having a sun visor main body that is mounted to be rotatable about the axis of a support shaft and slidable in the axial direction of the support shaft, for example, a vehicle sun visor 100 illustrated in FIG. Have been.
[0003]
The vehicle sun visor 100 shown in FIG. 9 includes a sun visor main body 101 that blocks light from outside the vehicle, and a support 102 that is attached to an upper edge portion of the sun visor main body 101. The support body 102 is formed into a hollow cylindrical shape by extrusion molding of aluminum. Inside the support body 102, one end of a support shaft 103 whose base end is bent substantially in an L-shape is formed by a metal bearing member. It is inserted through the state 104. The bearing member 104 is accommodated inside the support body 102 while rotatably holding one end of the support shaft 103, and the bearing member 104 is slidable (movable) in the longitudinal direction inside the support body 102. Accordingly, the sun visor main body 101 can slide in the axial direction of the support shaft 103 (in the direction indicated by the arrow X in FIG. 9).
[0004]
A plurality of coil springs (not shown) are charged on the lower surface of the bearing member 104, and the distal end of the coil spring is urged toward the inner surface of the support 102 by the elastic force of the coil spring. A projecting piece (not shown) made of synthetic resin is attached. When the sun visor body 101 is slid left and right, an appropriate frictional resistance (sliding resistance) is generated between the inner surface of the support 102 and the protruding piece. It is possible to obtain a good feeling of adjustment when adjusting.
[0005]
[Problems to be solved by the invention]
However, according to the conventional vehicle sun visor 100, the bearing member 104 for holding one end of the support shaft 103 and the projecting piece for providing frictional resistance to the sliding operation of the sun visor body 101 are separately formed. In addition, since a coil spring must be provided between the two members, the configuration of the vehicle sun visor 100 is extremely complicated.
[0006]
The present invention has been made in view of such a problem, and provides a vehicle sun visor having a good adjustment feeling when sliding the sun visor body in the axial direction of the support shaft and having a very simple configuration. The task is to
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the inventions described in the claims are configured.
According to the first aspect of the present invention, there is provided a vehicle having a sun visor body rotatably mounted around an axis of a support shaft, and a bearing member disposed between the support shaft and the sun visor body. Sun visor, wherein the sun visor main body is slidably mounted in the axial direction of the support shaft, and the elongated member provided along an upper edge portion of the sun visor main body includes the bearing member. Are held while holding one end of the support shaft. The bearing member includes a “bearing portion” that rotatably holds one end of the support shaft and a bearing that elastically abuts around the support shaft to generate friction when the sun visor body rotates with respect to the support shaft. A "rotational resistance applying section" for applying resistance, and a "slide resistance applying section" for applying frictional resistance to a sliding operation of the sun visor body by slidingly contacting a slide groove provided along a longitudinal direction of the housing section. , Are integrally provided. Here, the term “integral” means that the “bearing portion”, the “rotational resistance applying portion”, and the “slide resistance applying portion” are each configured so as not to physically separate from each other. However, this does not necessarily mean that each of these parts is made of a single material.
[0008]
With such a configuration, according to the vehicle sun visor according to the first aspect, when the sun visor body is rotated around the axis of the support shaft, an appropriate friction resistance is applied by the rotation resistance applying unit. Therefore, the adjustment feeling is good. Further, when the sun visor body is slid in the axial direction of the support shaft, an appropriate frictional resistance is applied by the slide resistance applying section, so that the feeling of adjustment is good. Further, since the bearing, the rotation resistance applying section, and the slide resistance applying section are integrally formed, the configuration of the bearing member becomes extremely simple, and the assembling work between the bearing member and the sun visor body becomes easy. In addition, there is an effect that the manufacture of the vehicle sun visor is facilitated.
[0009]
According to the second aspect of the present invention, the slide resistance applying section is formed of a synthetic resin. As a result, a smooth frictional resistance is generated between the slide groove and the synthetic resin, so that the sliding operation of the support shaft of the sun visor body in the axial direction is extremely smooth.
[0010]
According to the third aspect of the present invention, the detachment preventing member for preventing the support shaft and the bearing member from being detached from the accommodation portion is disposed at the entrance of the accommodation portion. This effectively prevents problems such as the sun visor body falling off from one end of the support shaft and falling into the vehicle interior.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view illustrating an appearance of a vehicle sun visor 1 according to the present embodiment. FIG. 2 is a cross-sectional view of the vehicle sun visor 1 taken along line AA, FIG. 3 is a cross-sectional view of the vehicle sun visor 1 taken along line BB, and FIG. It is a line sectional view.
As shown in FIGS. 1 and 2, a vehicle sun visor 1 according to the present embodiment mainly includes a sun visor main body 2 which is a light shielding portion for sunlight or the like to be inserted into a vehicle interior. The sun visor main body 2 is generally manufactured by injection molding, blow molding, bead foam molding, or the like of a thermoplastic synthetic resin. In the present embodiment, the sun visor main body 2 is formed into a substantially rectangular shape by injection molding of a thermoplastic synthetic resin. It is formed in a plate shape. As shown in FIG. 2, the central portion of the sun visor main body 2 is formed in a flat plate shape, and the outer peripheral portion of the sun visor main body 2 is shaped by an outer frame 2a having a substantially circular cross section.
[0012]
As shown in FIG. 1, the sun visor main body 2 is attached to the ceiling surface of the passenger compartment by a support shaft 3 which is a long rod-like member whose base end is bent substantially in an L shape.
That is, one end on the base end side of the support shaft 3 is fixed to a required portion of the ceiling surface of the vehicle compartment via the mounting bracket 3a. On the other hand, the other end of the support shaft 3 is rotatably inserted into a bearing portion 5a of a bearing member 5 disposed inside the sun visor body 2 (see FIGS. 2 to 4). As a result, the sun visor body 2 is supported substantially horizontally by the support shaft 3, and is rotated around the support shaft 3, so that the storage position along the ceiling surface of the vehicle compartment and along the windshield of the vehicle. The arrangement is switched to the light shielding position.
As shown in FIG. 1, a support shaft 4 is provided at an upper end on the left end side of the sun visor body 2. The support shaft 4 is detachably hooked to a hook (not shown) installed in the vehicle interior. Thus, the sun visor body 2 is rotatable around the axis of the support shaft 3 and is supported substantially horizontally.
[0013]
As shown in FIG. 1, the sun visor body 2 has a housing portion 6 for housing the bearing member 5 in a long hole shape (a deep bottom horizontal hole shape) along the upper edge portion inside the sun visor body 2. Is provided. As shown in FIGS. 2 and 4, the housing portion 6 has a keyhole-shaped cross-sectional shape corresponding to the bearing member 5. It is inserted in a state assembled around the third axis.
[0014]
FIG. 5 is a perspective view showing a state before the support shaft 3 and the bearing member 5 are assembled.
As shown in FIG. 5, the support shaft 3 is a long rod-shaped member formed in a substantially circular cross section and inserted into a pipe made of a thermoplastic synthetic resin. The support shaft 3 is roughly inserted into the bearing portion 5 a of the bearing member 5. And a base end 9 which is a base end side portion closer to the mounting bracket 3a than the insertion portion 8. The shaft diameter of the insertion portion 8 is formed so as to be smaller than the shaft diameter of the base end portion 9, and a difference between those shaft diameters is provided at a portion that is a boundary between the insertion portion 8 and the base end portion 9. A step 9a of a corresponding height is formed. A truncated cone-shaped tip portion 7 is provided on the tip end side of the support shaft 3, and the tip portion 7 is tapered to facilitate insertion of the support shaft 3 into the bearing portion 5 a. A contact portion 10 having a non-circular cross-sectional shape is formed at a substantially central portion in the axial direction of the insertion portion 8.
[0015]
Further, as shown in FIG. 5, the bearing member 5 is formed by cutting and bending a plate-shaped member made of a metal material such as iron or spring steel, and has a substantially cylindrical bearing. It has a portion 5a and a flat detent portion 5b extending downward from the lower end of the bearing portion 5a.
The distal end portion 7 of the support shaft 3 is inserted into the bearing portion 5a so as to penetrate from one open end toward the other open end, and the outer peripheral surface of the insertion portion 8 abuts the inner peripheral surface of the bearing portion 5a. Held in state. When the sun visor body 2 is rotated around the axis of the support shaft 3, the support shaft 3 is configured to be able to smoothly rotate while slidingly contacting the inner peripheral surface inside the bearing portion 5a. .
A rotation resistance applying portion formed at a substantially central position in the axial direction of the bearing portion 5a so as to cut out an outer peripheral side wall portion of the bearing portion 5a in a substantially U-shape while leaving one end on the lower end side. 12 are provided. As shown in FIG. 4, the rotation resistance applying portion 12 is formed in a state of being cut and raised straight so as to have a chord having a substantially circular cross section of the bearing portion 5a. When the support shaft 3 is inserted from the open end of the bearing portion 5a, the rotation resistance imparting portion 12 is elastically fitted between the contact portions 10 formed on the support shaft 3, and thereby the support shaft 3 is supported. 3 is attached to the bearing member 5 in a state where it cannot be moved in the axial direction.
[0016]
As shown in FIGS. 4 and 5, an end face 11 is formed on an outer peripheral portion of the contact portion 10. As shown in FIG. 5, the end face 11 is formed such that a part of the outer circumference in the cross section of the contact portion 10 is linear.
In the case where the sun visor body 2 is rotated around the axis of the support shaft 3, in a rotation range where the rotation resistance applying portion 12 abuts on the circumferential portion 10 a, which is a portion other than the end surface 11 of the abutment portion 10, When the elastic force based on the bending deformation of the rotation resistance applying portion 12 acts, the contact portion 10 is pressed toward the inner peripheral surface of the bearing portion 5a. Then, since an appropriate frictional resistance is generated between the outer peripheral surface of the contact portion 10 and the inner peripheral surface of the bearing portion 5a, there is an effect that the feeling of adjustment when rotating the sun visor body 2 is improved. . In a rotation range in which the contact position between the rotation resistance applying portion 12 and the contact portion 10 changes from the circumferential portion 10a to the end surface 11, the elastic member returns from the state in which the rotation resistance applying portion 12 is bent and deformed. Then, the state returns to the straight state, so that an urging force for rotating the sun visor body 2 around the axis of the support shaft 3 is generated between the sun visor body 2 and the support shaft 3. Thus, the sun visor main body 2 can be biased so as to automatically jump up to, for example, the ceiling in the vehicle cabin, so that the storage operation of the sun visor main body 2 becomes extremely easy.
[0017]
As shown in FIGS. 4 and 5, a substantially rectangular parallelepiped block-shaped sliding contact member 20 made of a thermoplastic synthetic resin such as polypropylene is provided on the rotation preventing portion 5b extending downward from the bearing portion 5a. Provided. The sliding contact member 20 is provided by an insert molding method or the like in which a thermoplastic synthetic resin material fluidized by heating is poured into a molding die, and a detent portion 5b is inserted (inserted) into the molding die and then cooled and solidified. be able to. A plurality of through-holes 21 are provided at equal intervals in the detent part 5b so as to penetrate the flat detent part 5b, and the fluidized thermoplastic synthetic resin material flows into the through-hole 21. As a result, the sliding contact member 20 provided in the rotation preventing portion 5b is prevented from being displaced or falling off.
[0018]
FIG. 6 is a perspective view showing a state where the bearing member 5 assembled to the support shaft 3 is inserted toward the inside of the housing portion 6.
As shown in FIG. 6, a slide groove 16 is provided at a lower end portion of the housing portion 6 along a longitudinal direction thereof. When the bearing member 5 is inserted from the inlet portion 15 of the housing portion 6, the sliding contact member 20 provided on the rotation preventing portion 5 b is pushed inward while being fitted along the slide groove 16. After the bearing member 5 has been inserted to a certain depth, the slip-off preventing member 22 previously attached to the base end 9 of the support shaft 3 is press-fitted toward the inlet portion 15 of the housing portion 6.
[0019]
The slip-off preventing member 22 is a substantially cylindrical member injection-molded with a thermoplastic synthetic resin such as polypropylene, and has a substantially keyhole-shaped cross-sectional shape corresponding to the inlet portion 15 of the housing portion 6. The slip-off preventing member 22 is a member that prevents the support shaft 3 and the bearing member 5 from “slipping” from the housing portion 6 by closing the entrance portion 15 of the housing portion 6. The protrusion 23 is provided at a position corresponding to the engagement recess 24 provided on the inner surface of the slide groove 16 in a flat plate-like portion extending from the portion. When the stopper member 22 is press-fitted to a predetermined depth, the protrusion 23 is elastically fitted into the engagement recess 24 (see FIG. 3). Then, by the engagement force of the projection 23 fitted in the engagement recess 24, the detachment prevention member 22 is firmly fixed in a state where the entrance portion 15 of the housing portion 6 is closed.
Further, the stopper member 22 is formed in a substantially cylindrical shape, and also has a function as a “bearing” for holding the support shaft 3 so as to be rotatable and slidable by inserting the support shaft 3 therein. I have. That is, the support shaft 3 inserted into the housing portion 6 has one end on the distal end side held by the bearing member 5 and is also held on the base end side by the slip-off prevention member 22, so that the support shaft 3 is spaced apart in the axial direction. The shaft center is supported in a stable state without being shaken at the location.
[0020]
In addition, since the sliding contact member 20 provided on the rotation preventing portion 5b is fitted into the slide groove 16, the bearing member 5 is prevented from rotating inside the housing portion 6 in a non-rotatable state. Thus, the sun visor main body 2 mounted around the support shaft 3 via the bearing member 5 is held by the rotation preventing portion 5b at a predetermined rotation position with respect to the support shaft 3 in a substantially constant state. It has become.
[0021]
In the sun visor 1 for a vehicle configured as described above, when the sun visor body 2 is slid (moved) left and right along the axial direction of the support shaft 3, the sliding contact member 20 slidably contacts the slide groove 16, thereby causing frictional resistance. Occurs. As a result, an appropriate resistance can be obtained when the sun visor body 2 is slid, and the sun visor body 2 is moved to a desired position in the axial direction of the support shaft 3 and firmly at the moved position. Can be fixed. That is, in the present embodiment, the sliding contact member 20 corresponds to the “slide resistance applying section” in the present invention. In the present embodiment, since the sliding contact member 20 is formed of a synthetic resin material such as polypropylene, the sliding contact with the slide groove 16 is smooth, and the sliding of the sun visor body 2 with respect to the axial direction of the support shaft 3 is performed. The operation is smooth.
[0022]
Further, in the present embodiment, the bearing member 5 is integrally formed without physically separating the bearing portion 5a, the rotation resistance applying portion 12, and the sliding contact member 20, so that the configuration is extremely simple. Also, the work of assembling to the sun visor body 2 is easy.
That is, the bearing member 5 can easily form the bearing portion 5a and the rotation resistance applying portion 12 by cutting and bending an iron plate or the like, and slide-contact by insert molding of a thermoplastic synthetic resin. The member 20 can be easily provided. Therefore, unlike the conventional sun visor for a vehicle, there is an advantage that no trouble such as forming the bearing member and the projecting piece as separate members and then assembling a coil spring therebetween is required, and the number of parts is reduced. Further, when the bearing member 5 is inserted into the housing portion 6, it is only necessary to push the integrally formed bearing member 5 together with the support shaft 3, so that the bearing member is compressed while the coil spring is compressed as in a conventional vehicle sun visor. There is an advantage that no labor for assembling such as pushing in is required.
[0023]
Further, in the vehicle sun visor 1 according to the present embodiment, even if the sun visor main body 2 is fully slid in the left direction (left direction as viewed in FIG. 1), the entrance portion 15 of the housing portion 6 is prevented from falling off. Since the detachment prevention member 22 is attached to the bearing member 5, the detachment and detachment of the sun visor body 2 from the support shaft 3 is effectively prevented.
[0024]
The present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist of the present invention.
In the above-described embodiment, an example is shown in which the sliding contact member 20 is formed in a block shape from a thermoplastic synthetic resin. However, the present invention is not limited to such an embodiment, and may be implemented, for example, in the embodiment shown in FIG. It is possible.
According to the bearing member 30 shown in FIG. 7, the plate-shaped detent portion 31 formed by extending downward from the cylindrical bearing portion 30 a is substantially bent at its lower end in a folded shape. A U-shaped bent portion 32 is formed.
When the bearing member 30 is inserted into the housing portion 6 of the sun visor body 2, the bearing member 30 is pushed inward so as to fit into the slide groove 16 while compressing and contracting the bent portion 32. Then, the bent portion 32 comes into contact with the side wall surface of the slide groove 16 by the elastic force based on the bending deformation, so that the sun visor body 2 is slid in the axial direction of the support shaft 3. Appropriate frictional resistance is generated. That is, in the bearing member 30 shown in FIG. 7, the bent portion 32 bent in a substantially U-shape corresponds to the “slide resistance applying portion” in the present invention.
As described above, the bearing member according to the present invention can be manufactured from a single material by bending an iron plate or the like having required elasticity.
[0025]
Further, as another embodiment of the present invention, for example, a bearing member 40 shown in FIG. 8 can be used.
In a bearing member 40 shown in FIG. 8, a bearing portion 40a and a sliding contact portion 41 are integrally formed of a thermoplastic synthetic resin. A clip 42, which is a metal plate bent in a substantially U-shape, is provided on the upper surface side of the sliding contact portion 41 by insert molding. The clip 42 is a member for clamping the abutting portion 10 of the support shaft 3 from both sides by elastic force based on the bending deformation, and the holding force of the clip 42 causes the sun visor body 2 to rotate around the axis of the support shaft 3. An appropriate feeling of resistance can be obtained when performing a rotating operation. That is, in the bearing member 40 shown in FIG. 8, the above-described clip 42 corresponds to the “rotation resistance applying portion” in the present invention.
[0026]
Further, in the above-described embodiment, the example in which the rotation preventing portion 5b of the bearing member 5 is formed so as to extend from the lower end portion of the bearing portion 5a in a flat plate shape, but is not limited to such a shape and mode. is not. The detent part 5b may be formed in other shapes and modes as long as the relative rotation between the bearing member 5 and the housing part 6 can be disabled.
[0027]
Further, in the above-described embodiment, the example in which the bearing member 5 is formed of iron, spring steel, or a synthetic resin material has been described. However, even when the bearing member 5 is formed of a material such as another metal material or rubber, The invention is applicable.
[0028]
Further, in the above-described embodiment, the example in which the sun visor body 2 is manufactured by injection molding of a thermoplastic synthetic resin has been described. However, the present invention can be applied to sun visor bodies manufactured by various methods.
Further, the material of the sun visor body 2 is not limited to a thermoplastic synthetic resin, and the present invention can be applied to a case where the sun visor body 2 is made of other materials such as rubber, wood, cardboard and the like.
Further, the present invention can be applied to a case where the sun visor body 2 is divided into two parts, the front part and the back part, and the divided body is joined to use the hollow sun visor body 2. it can.
[0029]
Further, in the above-described embodiment, an example in which the outer surface of the sun visor body 2 is not covered with the skin material has been described, but the outer surface of the sun visor body 2 is covered with a skin material such as a nonwoven fabric or a vinyl chloride sheet. The present invention can be applied to such cases. Further, the present invention can be applied even when a sponge-like pad material is provided on the outer surface of the sun visor body 2.
[0030]
Further, in the above-described embodiment, the example of the vehicle sun visor 1 arranged along the windshield is shown, but the present invention can be applied to, for example, a vehicle sun visor arranged along the side glass.
[0031]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a vehicle sun visor having a good adjustment feeling when the sun visor body is slid in the axial direction of the support shaft and having a very simple configuration.
[Brief description of the drawings]
FIG. 1 is a front view illustrating an appearance of a vehicle sun visor according to an embodiment.
FIG. 2 is a sectional view taken along line AA of the vehicle sun visor in FIG.
FIG. 3 is a sectional view taken along line BB of the vehicle sun visor in FIG. 1;
FIG. 4 is a sectional view taken along line CC of the vehicle sun visor in FIG. 1;
FIG. 5 is a perspective view showing a state before the support shaft and the bearing member are assembled.
FIG. 6 is a perspective view showing a state where the bearing member assembled to the support shaft is inserted toward the inside of the housing.
FIG. 7 is a perspective view showing another embodiment of the bearing member.
FIG. 8 is a perspective view showing another embodiment of the bearing member.
FIG. 9 is a front view showing a conventional sun visor for a vehicle.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sun visor 2 for vehicles 2 Sun visor main body 3 Support shafts 5, 30, 40 Bearing members 5a, 30a, 40a Bearing portions 5b, 31 Detent part 6 Housing part 8 Insertion part 9 Base end part 10 Contact part 11 End face 12 Rotation resistance Giving part 15 Inlet part 16 Sliding groove 20 Sliding contact member 22 Pull-out preventing member 32 Bending part (Sliding resistance giving part)
41 Sliding part (sliding resistance applying part)
42 clip (rotational resistance applying part)

Claims (3)

A sun visor for a vehicle, comprising: a sun visor body rotatably mounted around an axis of a support shaft; and a bearing member disposed between the support shaft and the sun visor body.
The sun visor body is slidably mounted in the axial direction of the support shaft,
The bearing member is accommodated in an elongated accommodation portion provided along an upper edge portion of the sun visor body while holding one end of the support shaft,
The bearing member elastically abuts a bearing portion rotatably holding one end of the support shaft around an axis of the support shaft to impart frictional resistance to a rotation operation of the sun visor body with respect to the support shaft. A rotation resistance applying section and a slide resistance applying section that slides on a slide groove provided along a longitudinal direction of the housing section to apply frictional resistance to a sliding operation of the sun visor body are integrally provided. A sun visor for a vehicle, comprising: The vehicle sun visor according to claim 1,
A sun visor for a vehicle, wherein the slide resistance applying portion is formed of a synthetic resin. The vehicle sun visor according to claim 1 or claim 2,
A sun visor for a vehicle, wherein a detachment preventing member for preventing a support shaft and a bearing member from coming off from the accommodation portion is provided at an entrance of the accommodation portion.

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