JP2004243970A - Sun visor for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sun visor for a vehicle in which a switch mechanism for preventing forgetting to turn off an illuminator fitted to a sun visor body or a vehicle body side is constituted of a minimum number of parts. <P>SOLUTION: The sun visor 1 for a vehicle has a sun visor body 2 which is connected to an inner side of a cabin via a spindle 3, and turned around the spindle 3 to be switched to a storage position along a ceiling surface of a cabin or a light-shading position along a windshield. The power from an on-vehicle battery is supplied to an illumination lamp 7 fitted to the sun visor body 2 via a harness 30 passed through the spindle 3. A switch mechanism 40 to be operated by an operation piece 10 protruded around the spindle 3 is provided on the harness 30. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle sun visor including a sun visor body rotatably mounted around a shaft connected to a vehicle interior.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a vehicle sun visor installed in a vehicle interior for the purpose of shading or the like, for example, a vehicle sun visor disclosed in Patent Document 1 is known.
In the vehicle sun visor disclosed in Patent Literature 1, the lighting device (110) is mounted on the sun visor main body, and electricity from the vehicle-mounted battery is transmitted through the lead wires (100, 101) inserted into the support shaft. The lighting device (110) is supplied. At the tip of the support shaft, a switch mechanism is provided to prevent the lighting device (110) from being forgotten to be turned off when the sun visor body is stored in the ceiling of the vehicle compartment. This switch mechanism is provided on the outer periphery of the support shaft. A pair of support shaft terminal members (102, 103) provided, a pair of main body terminal members (105, 106) provided on the sun visor body side, an insulating member (32) for insulating between terminals, and a tip of the support shaft. And a plurality of components such as a cap (44).
[0003]
[Patent Document 1]
JP 2002-21315 A
[Problems to be solved by the invention]
By the way, according to the conventional vehicle sun visor, there is a problem that a large number of components are required to constitute a switch mechanism for preventing the lighting device from being forgotten to be turned off, which increases the cost.
The present invention has been made in view of such a problem, and a vehicle in which a switch mechanism for preventing forgetting to turn off a lighting device mounted on a sun visor main body or a vehicle body side or the like can be configured with fewer components. It is intended to provide a sun visor.
[0005]
[Means for Solving the Problems]
A first invention of the present application for solving the above problem is a sun visor for a vehicle as described in claim 1.
Therefore, a switch mechanism for preventing forgetting to turn off the lighting device or the like can be constituted only by the movable switch that is operated by relative rotation with the support shaft. Thereby, the number of parts can be reduced.
Note that the “movable switch” here means that at least a part thereof is deformed by receiving a physical force due to relative rotation with respect to a support shaft, and is switched between a non-energized state (open state) and an energized state (closed state). Means a movable contact that can be switched to
[0006]
The second invention of the present application is a sun visor for a vehicle as described in claim 2. Therefore, since the movable switch is provided with the contact spring actuated by the operation piece protruded on the outer periphery of the support shaft, the switch mechanism for preventing forgetting to turn off the lighting device and the like can be configured more simply. it can. Further, since the movable switch can be maintained in the closed state by utilizing the elastic force of the contact spring, it is possible to prevent contact failure of the contact and the like.
[0007]
The third invention of the present application is a sun visor for a vehicle as described in claim 3. Therefore, the operating piece protruding (provided in a convex shape) on the outer periphery of the support shaft for operating the contact spring can also be used as a retaining means for preventing the support shaft from coming off from the sun visor body. The number of parts can be further reduced.
[0008]
A fourth invention of the present application is a sun visor for a vehicle as described in claim 4. Therefore, a switch mechanism for preventing forgetting to turn off the lighting device or the like can be constituted only by the limit switch operated by the relative rotation with the support shaft. Thereby, the number of parts can be reduced.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
[First Embodiment]
Hereinafter, a vehicle sun visor 1 according to a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing an appearance of a vehicle sun visor 1 according to the present embodiment, and shows a state inside a storage chamber 5 in which a part of a sun visor main body 2 is broken and a bearing member 22 is stored. . FIG. 2 is a perspective view showing a state when the tip 3b of the support shaft 3 is inserted into the bearing hole 25a of the bearing member 22.
[0010]
As shown in FIG. 1, a vehicle sun visor 1 according to the present embodiment is mainly configured with a sun visor body 2 for shielding sunlight or the like inserted into a vehicle interior. The sun visor body 2 is formed in a hollow shape by joining back and forth a square plate-shaped half shell body injection-molded with a thermoplastic synthetic resin (for example, polypropylene or the like). Is covered with a skin material made of a vinyl chloride sheet, a nonwoven fabric or the like in close contact. Inside the sun visor body 2, a housing chamber 5 for housing a bearing member 22 described later is configured to be surrounded by partition walls 5 a and 5 b. The vehicle sun visor 1 may be formed by other methods such as bead molding and blow molding of a thermoplastic synthetic resin. For example, when the sun visor main body 2 is formed by bead foam molding of a thermoplastic synthetic resin, the bearing member 22 can be fixed at a predetermined position by inserting the bearing member 22 at the time of foam molding. In this case, there is an advantage that it is not necessary to provide the partition walls 5a and 5b for configuring the accommodation room 5 described above.
The sun visor 1 for a vehicle is not limited to a rectangular plate as shown in FIG. 1, but may be a frame having a substantially central opening having an opening extending in the front and rear (so-called, for example). It is also possible to use a so-called trim visor.
[0011]
As shown in FIG. 1, the sun visor main body 2 is connected to the vehicle body side by a support shaft 3 which is a rod-shaped member formed substantially in an L shape.
That is, an end on the base end side of the support shaft 3 is connected to a required portion of the ceiling of the vehicle compartment via the mounting bracket 3a. On the other hand, the tip portion 3b of the support shaft 3 is rotatably inserted into a bearing hole 25a of the bearing member 22 housed in the housing chamber 5. As a result, the sun visor body 2 is supported substantially horizontally in the vehicle interior, and is rotated around the axis of the support shaft 3 so that the sun visor main body 2 is stored along the vehicle interior ceiling and along the vehicle windshield. The arrangement is switched between the light shielding positions.
A support shaft 4 is provided at the upper left end of the sun visor body 2. The support shaft 4 is rotatably hooked to a hook (not shown) installed in the vehicle interior and functions as a rotation center axis when the sun visor body 2 is rotated. .
[0012]
As shown in FIG. 1, a vanity mirror 6, which can be used, for example, as a cosmetic mirror by an occupant of the vehicle, is attached to a substantially central portion of the surface of the sun visor body 2. A slide lid 8 is provided on the surface of the vanity mirror 6 so that an occupant or the like of the vehicle can grip the handle 8a and open and close left and right. On the right side of the vanity mirror 6, an illumination lamp 7 that can be turned on and off by opening and closing the slide lid 8 is provided adjacently. That is, when the slide lid 8 is closed to the right, the two contacts 50a and 50b provided on the harness 30 are not in contact (OFF state), and the illumination lamp 7 is turned off. Conversely, when the slide lid 8 is opened to the left, the two contacts 50a and 50b provided on the harness 30 are in contact (ON state), and the switch mechanism 40 described later is in the ON state. On condition that there is, the illumination lamp 7 is turned on. The illumination lamp 7 corresponds to the “illumination device” in the present invention.
Note that, in the present embodiment, an example of the slide lid 8 that can be slid left and right is shown, but the present invention is not limited to such an aspect. For example, an opening / closing lid that opens and closes the vanity mirror 6 in an upward opening manner may be provided. When the vanity mirror 6 is provided with an openable opening / closing lid, the opening / closing operation of the opening / closing lid in the up-down direction and the turning on / off operation of the illumination lamp 7 may be linked.
[0013]
As shown in FIG. 2, the support shaft 3 is a rod-shaped member formed in a substantially circular cross section from a rigid synthetic resin such as PA6 + a reinforcing member (polyamide) or POM (polyacetal). A hollow pipe 20 made of a metal such as aluminum or iron is inserted inside the support shaft 3. Inside the hollow pipe 20, a lighting battery 7 is provided with a vehicle-mounted battery (vehicle-side power supply). The harness 30 for supplying electricity is inserted. On the outer periphery of the support shaft 3, a clip member 21, which will be described later, is mounted around the shaft, and a switch mechanism 40 provided on the harness 30 is located on the distal end side with respect to the mount 9. And a protruding operating piece 10 for performing the operation. The mounting portion 9 is formed with a cutout surface 11 so that the outer peripheral shape of a cross section perpendicular to the axial direction of the support shaft 3 is partially linear.
[0014]
As shown in FIG. 2, the clip member 21 is formed by bending a plate-shaped member made of a metal material such as iron or spring steel. It is integrally formed with a contact portion 23 that elastically contacts the surface and a leg portion 24 that extends below the contact portion 23 and is fixed to the bearing member 22 so as to be embedded therein.
[0015]
Further, as shown in FIG. 2, the bearing member 22 includes a bearing portion 25 having a bearing hole 25a for supporting the support shaft 3 so as to be rotatable and its shaft center does not move. And a pedestal 26 fixedly embedded in the upper surface thereof, and are integrally formed of a thermoplastic synthetic resin. A pair of contact springs 41a and 41b for forming a switch mechanism 40 that can switch the harness 30 between a conducting state and a non-conducting state are attached to the base 26 in an embedded manner. The pair of contact springs 41a and 41b are formed by bending a conductive material having spring elasticity such as a copper plate, and are provided in a convex shape on one contact spring 41b in a natural state where no external force is applied. The contact portion 42 is maintained in a state of being constantly in contact with the other contact spring 41a by the urging force of the spring elasticity. This prevents poor contact between the pair of contact springs 41a and 41b.
[0016]
In the vehicle sun visor 1 configured as described above, when the sun visor main body 2 is rotated around the axis of the support shaft 3, the outer peripheral surface of the mounting portion 9 and the inside of the clip member 21 (the contact portion 23). Since an appropriate frictional resistance is generated between the outer peripheral surface and the peripheral surface, an appropriate torque feeling (resistance) can be obtained. Thereby, the adjustment feeling when rotating the sun visor main body 2 around the axis of the support shaft 3 is improved.
In addition, the contact portion 23 of the clip member 21 is provided with a flat plate portion 23a that can make surface-to-surface contact with the cutout surface 11 formed on the outer peripheral surface of the mounting portion 9. In the rotation range in which the contact position between the surface and the flat plate portion 23a shifts to the cutout surface 11, a rotation operation force such that the sun visor body 2 jumps up toward the vehicle compartment ceiling portion due to the spring elasticity of the clip member 21. To occur. Thus, there is an effect that the sun visor main body 2 is automatically stored in the vehicle ceiling just by moving the sun visor main body 2 toward the ceiling of the vehicle compartment and within a predetermined angle range.
[0017]
FIG. 3 is a cross-sectional view corresponding to line AA of the vehicle sun visor 1 in FIG. 1, and shows a state in which the sun visor main body 2 is in a storage position along a vehicle compartment ceiling surface. FIG. 4 is a cross-sectional view corresponding to line AA of the vehicle sun visor 1 in FIG. 1 and shows a state where the sun visor body 2 is in a light shielding position along the windshield.
[0018]
As shown in FIG. 3, when the sun visor main body 2 is in the retracted position, one contact spring 41b is pressed in a direction away from the other contact spring 41a by the operating piece 10 protruding from the support shaft 3. It is in a state where it is set. At this time, the switch mechanism 40 constituted by the pair of contact springs 41a and 41b is in an OFF state where electricity cannot flow.
As shown in FIG. 4, when the sun visor body 2 is in the light blocking position, the relative rotation between the support shaft 3 and the sun visor body 2 causes the operation piece 10 that has pressed the contact spring 41b to move. 41b. Then, the contact spring 41b elastically returns to the original state from the bent state, and the contact portion 42 of the contact spring 41b elastically contacts the other contact spring 41a. The configured switch mechanism 40 is in an ON state where electricity can flow.
[0019]
By operating the switch mechanism 40 in this manner, the effects described below are achieved.
That is, when the sun visor main body 2 is in the light blocking position (see FIG. 4), the switch mechanism 40 is in an ON state, and is in an energized state in which electricity can flow to the illumination lamp 7 via the harness 30. Therefore, by opening and closing the slide lid 8 right and left and turning on and off the contacts 50 a and 50 b provided on the harness 30, the illumination lamp 7 can be switched between a lighted state and a light-off state.
When the sun visor body 2 is in the storage position (see FIG. 3), the switch mechanism 40 is in the OFF state, and is in a non-energized state in which it is impossible to supply electricity to the illumination lamp 7 via the harness 30. Therefore, the illumination lamp 7 is always off regardless of whether the slide lid 8 is operated to the open position or the closed position.
That is, even when the sun visor body 2 is stored in the ceiling of the vehicle compartment with the slide lid 8 opened (ON state), the switch mechanism 40 is turned OFF and the illumination lamp 7 is automatically turned on. Since the lamp is turned off, waste of power due to forgetting to turn off the illumination lamp 7 is prevented. In order to configure the switch mechanism 40, only the pair of contact springs 41a and 41b need to be prepared as components, so that the number of components for manufacturing the vehicle sun visor 1 can be reduced.
[0020]
Further, according to the vehicle sun visor 1 of the present embodiment, the operating piece 10 is provided in a convex shape with respect to the outer periphery of the support shaft 3, so that the clip member 21 mounted around the support shaft 3 is attached to the operation member 10. On the other hand, the operation piece 10 is engaged (jagged). This prevents the support shaft 3 from "falling out" of the sun visor body 2. That is, the operating piece 10 for operating the contact spring 41b can also be used as a retaining means for retaining the support shaft 3 from the sun visor body 2, so that the retaining piece used in the conventional sun visor is used. (For example, an annular metal fitting called an E-ring) for retaining is unnecessary, and the number of parts of the vehicle sun visor 1 can be further reduced.
[0021]
[Second embodiment]
Hereinafter, a vehicle sun visor 201 according to a second embodiment of the present invention will be described with reference to the drawings.
FIG. 5 is a front view showing the appearance of the vehicle sun visor 201 in the present embodiment, and shows a state inside the accommodation room 5 in which the bearing member 22 is accommodated by breaking a part of the sun visor main body 2. . FIG. 6 is a perspective view showing an aspect when the tip 3b of the support shaft 3 is inserted into the bearing hole 25a of the bearing member 22. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description is omitted.
[0022]
In the second embodiment, as shown in FIG. 5, a manual switch 51 for turning on and off the illumination lamp 7 is provided adjacent to the right side of the illumination lamp 7. When the manual switch 51 is turned off, the illumination lamp 7 can be turned off. When the manual switch 51 is turned ON, the illumination lamp 7 can be turned on on condition that a switch mechanism 240 described later is ON.
[0023]
In the second embodiment, as shown in FIGS. 5 and 6, a cam surface 243 is formed at a portion of the support shaft 3 closer to the tip than the mounting portion 9, and the pedestal portion 26 of the bearing member 22 is formed. A limit switch 241 provided with a plunger 242 (actuating actuator), the tip of which abuts against the cam surface 243, is buried. The limit switch 241 constitutes a switch mechanism 240 (so-called cam switch) that can switch the harness 30 connected to the illumination lamp 7 between an energized state and a non-energized state.
[0024]
FIG. 7 is a cross-sectional view corresponding to line BB of the vehicle sun visor 201 in FIG. 5, and shows a state where the sun visor main body 2 is in a storage position along a vehicle compartment ceiling surface. FIG. 8 is a cross-sectional view corresponding to line BB of the vehicle sun visor 201 in FIG. 5, and shows a state where the sun visor main body 2 is at a light blocking position along the windshield.
As shown in FIG. 7, when the sun visor main body 2 is in the retracted position along the ceiling of the passenger compartment, the plunger 242 protrudes from the limit switch 241 main body to the maximum length, and the limit switch 241 is configured to supply electricity. Cannot be turned off.
As shown in FIG. 8, when the sun visor main body 2 is at the light blocking position along the windshield, the plunger 242 is limited based on the curved shape of the cam surface 243 by the relative rotation between the support shaft 3 and the sun visor main body 2. The switch 241 is pressed toward the main body. As a result, the limit switch 241 switches to an ON state in which electricity can flow.
[0025]
By operating the plunger 242 in this manner, the effects described below are achieved.
That is, when the sun visor body 2 is in the light blocking position (see FIG. 8), the switch mechanism 240 is in the ON state, and is in an energized state in which electricity can flow to the illumination lamp 7 via the harness 30. Therefore, by turning on / off the manual switch 51 provided adjacent to the illumination lamp 7, the illumination lamp 7 can be switched between a lighting state and an extinguishing state.
When the sun visor main body 2 is in the storage position (see FIG. 7), the switch mechanism 240 is in the OFF state, and is in a non-energized state where it is impossible to supply electricity to the illumination lamp 7 via the harness 30. Therefore, regardless of whether the manual switch 51 is operated ON or OFF, the illumination lamp 7 is always kept off. This prevents power from being wasted due to forgetting to turn off the illumination lamp 7. In order to configure the switch mechanism 240, only the limit switch 241 needs to be prepared as a part, so that the number of parts for manufacturing the vehicle sun visor 201 can be reduced.
[0026]
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 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 the sun visor body 2 manufactured by various other methods. For example, the present invention can be applied to a sun visor main body 2 manufactured by bead foam molding, blow molding, or the like of a thermoplastic synthetic resin.
[0027]
In the above-described embodiment, an example in which the illumination lamp 7 is mounted on the sun visor main body 2 has been described. However, a vehicle in which the illumination lamp 7 is mounted not on the sun visor main body 2 but on a vehicle body side such as a vehicle ceiling. The present invention can also be applied to a sun visor for use.
[0028]
In the above-described embodiment, an example is shown in which the convex operating piece 10 for operating the switch mechanism 40 is engaged with the clip member 21 to prevent the support shaft 3 from falling out of the sun visor body 2. However, the present invention is not limited to such an embodiment. For example, the operating piece 10 is engaged with the peripheral edge of the bearing hole 25a so that the support shaft 3 is prevented from coming off from the sun visor body 2, and the pair of contact springs 41a, 41b and the operating piece 10 are moved. It may be provided.
[0029]
【The invention's effect】
As described above, according to the present invention, there is provided a sun visor for a vehicle in which a switch mechanism for preventing forgetting to turn off a lighting device mounted on a sun visor main body or a vehicle body side can be configured with fewer components. be able to.
[Brief description of the drawings]
FIG. 1 is a front view showing an external appearance of a vehicle sun visor according to a first embodiment, showing a state inside a housing chamber in which a bearing member is housed by breaking a part of a sun visor body.
FIG. 2 is a perspective view showing an aspect when a tip end of a support shaft is inserted into a bearing hole of a bearing member.
FIG. 3 is a cross-sectional view corresponding to line AA of the vehicle sun visor in FIG. 1, showing a state where the sun visor body is in a storage position along a ceiling surface of a vehicle compartment.
FIG. 4 is a cross-sectional view corresponding to the line AA of the vehicle sun visor in FIG. 1, showing a state where the sun visor body is at a light blocking position along a windshield.
FIG. 5 is a front view showing an external appearance of a vehicle sun visor according to a second embodiment, showing a state inside a housing chamber in which a bearing member is housed by breaking a part of the sun visor body.
FIG. 6 is a perspective view showing an aspect when a tip end of a support shaft is inserted into a bearing hole of a bearing member.
FIG. 7 is a cross-sectional view of the vehicle sun visor corresponding to line BB in FIG. 5, showing a state where the sun visor body is in a storage position along a ceiling surface of a vehicle compartment.
8 is a cross-sectional view corresponding to line BB of the vehicle sun visor in FIG. 5, showing a state where the sun visor body is at a light blocking position along a windshield.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sun visor for vehicles 2 Sun visor main body 3 Support shaft 6 Vanity mirror 7 Lighting lamp (lighting device)
Reference Signs List 8 Slide lid 9 Mounting part 10 Working piece 11 Notch surface 21 Clip member 22 Bearing member 30 Harness 40 Switch mechanism 41a, 41b Contact spring 50a, 50b Contact 51 Manual switch 201 Sun visor 240 for vehicle Switch mechanism 241 Limit switch 242 Plunger 243 Cam surface

Claims (4)

By being connected to the cabin through the support shaft and rotating around the support shaft, the layout can be switched between the storage position along the vehicle ceiling surface and the light shielding position along the windshield. A lighting device mounted on the sun visor body or the cabin side is supplied with electricity from a vehicle body side power supply via a harness inserted inside the support shaft, and is supplied to the harness. Is provided with a movable switch which is operated by relative rotation with respect to the support shaft. The vehicle sun visor according to claim 1,
A sun visor for a vehicle, wherein the movable switch includes a contact spring actuated by an operation piece protruding from an outer periphery of the support shaft. The vehicle sun visor according to claim 2, wherein
The operating piece is engaged with at least one of a bearing member that rotatably supports the support shaft and a clip member that elastically abuts on the outer periphery of the support shaft to impart a sense of torque to the rotation operation of the sun visor body. A sun visor for a vehicle, wherein the support shaft is prevented from coming off from the sun visor body. The vehicle sun visor according to claim 1,
A cam surface is formed on the outer periphery of the support shaft, and the movable switch is configured by a limit switch having a plunger whose tip abuts on the cam surface, and the plunger is operated by relative rotation with the support shaft. A sun visor for a vehicle.

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