JP2001080356A - Switch structure for rotary supporting part and sun visor for vehicle using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely turn off a lamp and the like without failure so as to prevent waste of battery power and deformation or discoloration in various parts due to heat by spacing respective electric contacts on a rotary member side and on a supporting shaft side from each other according to the rotational position of the rotary member journalled to a base via the supporting shaft for shutting off an electric circuit. SOLUTION: When a sun visor 1 as a rotary member is turned to a withdrawing position, a terminal plate of a switch block 20 and a projection part of the supporting shaft 3 are brought into contact with each other. When a door 32 is opened in this condition, a microswitch is turned on and the lamp 34 is lighted, so that a mirror 33 can be seen in brightness. When the door 32 is closed, the microswitch is turned off and the lamp 34 is turned off. If the sun visor 1 is turned to the storage position with the door 32 opened, the terminal plate is separated from a main body of the supporting shaft 3 and set in a non-contact condition. Therefore, the lamp 34 can be automatically and forcibly turned off even when the sun visor 2 is turned to the storage position with the microswitch turned on.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch structure of a rotation support portion and a sun visor for a vehicle using the switch structure.

[0002]

2. Description of the Related Art In recent years, sun visors for vehicles have been provided which have various functions in addition to a light shielding function. For example, there are known mirrors and lamps for makeup (so-called vanity mirrors and vanity lamps, hereinafter simply referred to as mirrors and lamps) and doors for opening and closing the mirrors and lamps. Conventionally, in the case of this mirror lamp built-in type, by using a switch that turns on and off in conjunction with the opening and closing operation of the door, the lamp is automatically turned on when the door is opened and the mirror is exposed, and the door is closed and closed. When the mirror was retracted, the lamp was turned off automatically. Further, as the door opening / closing structure, there has been provided a rotary type in which one end of the door is rotatably supported, or a sliding type in which the door is slidably supported in the surface direction of the sun visor.

[0003]

However, when the door is of a rotating type, the sun visor is stored along the ceiling of the vehicle compartment with the door open (the lamp is lit). Even if the door is stored in the position, the door is closed against the ceiling so that the lamp is surely turned off and there is no problem of forgetting to turn it off.However, when the door is a sliding type, the door is closed. Even if the sun visor is opened and the sun visor is stored, the door will not be closed and the lamp will be left on (forgotten to turn off), and as a result, the power battery (power) will be wasted. In addition, the heat generated by the lamp causes problems such as deformation and discoloration of the sun visor or roof lining. The present invention has been made in view of this problem, and in a sun visor in which an electric appliance such as a lamp is incorporated in a sun visor main body, when housed along a ceiling in a vehicle cabin, power supply to the electric appliance is cut off, and a lamp or the like is cut off. The switch structure of the rotation support portion and the switch structure that can reliably prevent forgetting to turn off the battery, thereby preventing wasteful consumption of battery power and deformation, discoloration, etc. of the sun visor or roof lining, etc. It is an object of the present invention to provide a vehicle sun visor used.

[0004]

For this reason, the present invention provides a switch structure or a sun visor for a vehicle having the structure described in the above claims. According to the switch structure of the first aspect,
When the rotating member is rotated to a certain position, the electrical contact on the support shaft side and the electrical contact on the rotating member side are separated from each other, and the electric circuit between the base and the rotating member is cut off. This switch structure can be applied to, for example, a rotation support portion of a vehicle sun visor. In this case, when the visor body as the rotating member is rotated to the storage position along the vehicle ceiling, the electrical contact on the support shaft side that supports the visor body on the vehicle body as the base and the visor body side By separating the electrical contacts of
A configuration in which power supply from the vehicle body (base) side to the visor body side is cut off can be realized.

[0005] According to this, even when the visor main body is stored while the electric appliance such as a lamp (vanity lamp) attached to the visor main body is turned on (while the power is supplied), the storage position is maintained. In this case, the power is automatically cut off, so that the lamp is not left in a lit state. Therefore, wasteful consumption of the battery, deformation of the sun visor or roof lining, discoloration, and the like can be prevented. The electric appliances attached to the sun visor are not limited to the lamps described above, and various electric appliances such as power outlets for connecting portable electric appliances such as a small electric fan, a navigation system, a radio, a liquid crystal television, an electric bulletin board, and a shaver can be used as visors. It can be applied when attached to the main body.

Further, as described above, the switch structure according to claim 1 can be suitably applied to a rotation support portion of a vehicle sun visor, but is not limited thereto.
For example, the present invention can be applied to a rotation support portion of a small spotlight that is rotatably mounted between a use position and a storage position near a vehicle dashboard. In this case, when the spotlight is stored along the dashboard, the power is automatically shut off, and the state in which the spotlight stays on can be reliably prevented. The spotlight can be turned on / off by a simple operation without any trouble.

According to the second aspect of the present invention, even if the visor main body is stored while power is supplied to the electric appliance, the electric contacts are separated when the visor main body is turned to the storage position. And the power supply circuit is shut off.
In the storage state of the visor main body, a state in which power is continuously supplied to the electric appliance is prevented. Therefore, when the lamp is attached to the visor body as an example of the electric appliance, it is possible to prevent the sun visor, the roof lining, and the like from being deformed or discolored due to heat generated by lighting of the lamp in the visor housed state. In addition, the storage position of the sun visor is such that the visor body is accurately aligned with the vehicle ceiling.
It does not need to be located at any position, and an arbitrary range of the entire rotation range of the visor main body can be set as the storage position. Therefore, a configuration in which the power supply circuit is cut off by setting, for example, about a half range of the entire rotation range of the visor main body to the storage position can be provided.

According to the third aspect of the present invention, even when the sun visor is stored with the door open (the door switch is in the ON state), power is supplied to the electric appliance in the visor stored state. Is shut off,
The same operation and effect as described above can be obtained.

According to the sun visor for a vehicle of the present invention, the support shaft itself is an electric contact, and if the electric contact on the visor side is located in the cutout provided on the support shaft, both electric contacts are non-contact. Since the power supply circuit is cut off in the contact state, the same operation and effect as described above can be obtained with a simpler switch structure.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. In the present embodiment, as an example of the rotation support structure, a rotation support structure for a vehicle body B of a visor main body 2 in a sun visor 1 for a vehicle will be illustrated.
As shown in FIG. 1, the vehicle sun visor 1 has a substantially flat visor body 2 and a support shaft 3 for rotatably supporting the visor body 2 near the ceiling of the vehicle body B. By rotating the visor body 2 up and down through the support shaft 3, the visor body 2 can be stored in a storage position along the vehicle ceiling surface, and protrudes downward from the storage position to shield light. It can be taken out to the take-out position.

The visor body 2 is a half-split hollow plate formed by joining a front plate 4 (a side facing the vehicle interior at the take-out position) formed by foaming polypropylene beads and a back plate 5 to each other at their respective peripheral edges. (See FIGS. 7 and 8)
reference). Although not shown, the visor main body 2 is covered with a decorative cover, except for a window 31c of the mirror set 30, which will be described later.

Between the front plate 4 and the back plate 5, the visor body 2
In the vicinity of the upper corner, a support block 10 for supporting the visor main body 2 on the support shaft 3 is attached in a sandwiching manner. FIG. 2 shows the support block 10 alone.
The support block 10 is provided with a support hole 10a through which the horizontal shaft portion 3a of the support shaft 3 is rotatably inserted. The horizontal shaft portion 3a of the support shaft 3 is
This support hole 1 passes through an insertion hole 2a formed in the visor body 2.
0a.

A notch 10b is provided in the upper part of the support block 10. This notch 10
At b, a U-shaped leaf spring 11 is attached so as to straddle a flat portion 3c formed on the horizontal shaft portion 3a of the support shaft 3.
When the visor body 2 is located at the storage position, the flat portion 3
c, the leaf spring 11 is elastically pressed in an overlapping manner, and the visor main body 2 is held at the storage position.

Further, a concave portion 10c is formed on the left side of the support block 10 so as to open on the lower surface side. Support hole 1
The horizontal shaft portion 3a of the support shaft 3 inserted through 0a is positioned in a bridging shape near the bottom of the concave portion 10c. This recess 10c
Inside, a switch block 20 is fitted below the horizontal shaft portion 3a in the figure.

The switch block 20 has a box shape open upward as shown in FIG. 6, and has grooves 20a, 20 for inserting both ends of a flat terminal plate 21 at the bottom thereof.
a is formed. The terminal plate 21 is attached to the switch block 20 in an inverted U-shape by inserting both ends into the two groove portions 20a, 20a, so that the terminal plate 21 has a moderate elasticity and the upper end 21b is connected to the switch block 20. Is held so as to slightly protrude from the upper end of the. In the case of the present example, the terminal plate 21 corresponds to the electrical contact on the rotating member side described in the claims. Hook claws 21a, 21a are formed on both ends of the terminal plate 21, and the hooks 21a, 21a are engaged with the bottom of the switch block 20 to prevent the terminal plate 21 from coming off. Further, a wiring S3 is connected to one end of the terminal plate 21. The terminal plate 21 is connected to the lamp 34 via the wiring S3.

Further, on both sides of the switch block 20, engagement projections 20b, 20b are formed. The two engagement projections 20b, 20b engage with the engagement holes 10d, 10d (see FIG. 2) formed in both side walls of the recess 10c, respectively, so that the switch block 20 is prevented from falling out of the recess 10c. Has been prevented.

As shown in FIG. 2, L-shaped fixing holes 10e and 10f are provided at two places on the lower surface of the support block 10. A reinforcing aggregate 6 is attached to the visor main body 2 along the periphery, and both ends of the aggregate 6 are inserted into the fixing holes 10e and 10f and fixed. As shown in FIGS. 3 and 6, a clip 20c is formed on the lower surface of the bottom of the switch block 20 for elastically holding the aggregate 6 in position.

Next, as shown in FIG. 3, the support shaft 3 has a structure in which a resin cover 14 is attached around a main body 13 of a metal pipe bent in a substantially L-shape. This spindle 3
Two wires S1 and S2 are inserted from the end of the vertical axis portion 3b. Both wires S1 and S2 are connected to a power supply (battery, not shown) mounted on the vehicle body B via a connector S0. One of the wires S1 is drawn out from the end of the horizontal shaft portion 3a of the support shaft 3 via the inner peripheral side of the main body 13, and is connected to a microswitch 40 described later. The end S2a of the other wiring S2 is soldered to the upper end of the main body 13.

The end of the main body 13 on the side of the horizontal shaft 3a protrudes from the cover 14, and the protruding portion 13a has a cutout 15 in the radial direction. This missing part 15
Are formed in a certain range around the protruding portion 13a. That is, when the visor main body 2 is rotated to the take-out position as shown in FIG. 7, the terminal plate 21 of the switch block 20 comes off the notch 15 and comes into contact with the main body 13 (projection 13a) of the support shaft 3. When the visor main body 2 is rotated to the storage position as shown in FIG.
Is moved to the front side of the missing portion 15 and the position and the range of the missing portion 15 are set so that the terminal plate 21 does not contact the main body 13. In the case of this example, the protruding portion 13a corresponds to the electrical contact on the support shaft side described in claims.

Next, as shown in FIG. 1, a rectangular recess 4c is formed in the front plate 4. The mirror set 30 is fitted in the concave portion 4c. FIG.
This mirror set 30 is shown alone. The mirror set 30 includes a frame 31 fitted and fixed in the recess 4c, and a door 3 slidably mounted on the frame 31.
2, a mirror 33 and a lamp 34 attached to the bottom 31b of the frame 31.

As shown in FIG. 4, the frame 31 has a box shape having a flat hollow portion, and a window 31
c is formed. Also, rails 31a, 31a having a U-shaped cross section are formed on the upper and lower inner peripheral sides of the frame body 31 so as to face up and down, and a door 32 for closing the window 31c via the rails 31a, 31a. Are slidably supported left and right. Although the door 32 is omitted in FIG. 4, this door 32 is shown alone in FIG. A handle 32 for opening and closing operation is provided at the right end on the front side of the door 32.
a is formed. When the door 32 is slid to the left, the window 31c is opened, and the mirror 33 and the lamp 34 are exposed toward the passenger compartment.
3 and a lamp 34 can be used. On the other hand, when the door 32 is slid rightward, the window 31c is closed, and the mirror 33 and the lamp 34 are stored.

A leaf spring 32b is mounted near the center of the lower end of the door 32. The leaf spring 32b is elastically pressed by the lower rail 31a of the frame 31, whereby the door 32 is slid left and right without rattling while maintaining an appropriate sliding resistance. At the upper end of the door 32 and slightly to the left of the center, there is formed a step portion 32c that is one step higher on the right side. The microswitch 40 is turned on and off by the movement of the step 32c due to the opening and closing of the door 32.

The micro switch 40 is attached to the upper end of the frame 31. The contact 40a of the microswitch 40 protrudes into the upper rail 31a. For this reason, the door 32 is closed and the step portion 32c is
When moved to the right of 1, the contact 40a is protruded and the microswitch 40 is turned off. When the door 32 is opened and the step 32c is moved to the left side of the frame 31, the contact 4
0a is pushed in and the microswitch 40 is turned on.

FIG. 9 shows a switch structure according to this embodiment. One wiring S1 connected to the power supply on the vehicle body B side via the connector S0 is connected to the microswitch 40. The other wiring S4 of the micro switch 40
Is connected to one of the lamps 34. The other wiring S3 of the lamp 34 is connected to the terminal plate 21. The other wiring S2 of the connector S0 is connected to the main body 13 of the support shaft 3. Therefore, when the microswitch 40 is turned on and the terminal plate 21 contacts the main body 13, the lamp 34 is turned on. On the other hand, the micro switch 40 is turned off,
When the terminal plate 21 is separated from the main body 13, the lamp 34 is turned off.

According to the switch structure configured as described above, when the sun visor 1 is rotated to the take-out position as shown in FIG. 7, the switch block 20 moves around the protruding portion 13a of the support shaft 3 in the clockwise direction in the drawing. Go to As a result, the terminal plate 21 comes off the notch 15 of the protruding portion 13a, and the terminal plate 21 comes into contact with the protruding portion 13a.
When the door 32 is opened in this state, the microswitch 40 is turned on by the step 32c, and the lamp 34 is turned on. When the lamp 34 is turned on, the passenger can use the mirror 33 in a bright state even at night.

On the other hand, when the door 32 is closed, the step 32c is disengaged from the contact 40a, and the microswitch 40 is turned off, thereby turning off the lamp 34. If the visor body 2 is rotated upward with the door 32 closed, the sun visor 1 can be stored at a position along the vehicle ceiling. When the visor main body 2 is rotated upward and stored with the door 32 opened (the micro switch 40 is kept on), the switch block 20 moves around the protruding portion 13a of the support shaft 3 as shown in the counterclockwise direction in FIG. Since the terminal plate 21 moves in the circumferential direction and is located on the side of the notch 15, the terminal plate 21 is separated from the main body 13 to be in a non-contact state.
For this reason, even when the micro switch 40 remains in the ON state, when the visor body 2 is turned to the storage position,
The lamp 34 goes out.

As described above, according to the switch structure of the present embodiment, even if the sun visor 1 is stored with the sliding door 32 opened, the lamp 34 is surely turned off. No problem occurs, so that the power supply battery is not wasted, and the sun visor 1 and the roof lining do not deform or discolor.

Various modifications can be made to the embodiment described above. For example, the protruding portion 13a of the main body 13
Although the non-conductive area with the terminal plate 21 was set by providing the missing portion 15 in the above, the same function was achieved by attaching a non-conductive plate such as a resin layer in a predetermined range instead of the missing portion 15. Obtainable.

The main body 13 of the support shaft 3 is made of a metal pipe having conductivity, and a wiring S2 is connected to the main body 13 to directly contact and separate the terminal plate 21. It is also possible to use a non-conductive material such as a synthetic resin, attach a terminal plate to a certain area around the protruding portion of the main body, connect the wiring S2 to the terminal plate, and contact the terminal plate 21.

Although the lamp 34 attached to the mirror 33 has been exemplified, the present invention can be applied to a sun visor having only a lamp for indoor lighting (a sun visor having no mirror 33).

Further, the illustrated switch structure can be applied to the case where the micro switch 40 (on / off function by opening and closing the door 32) is not provided. Also, sliding door 3
Although the case where it applied to the sun visor 1 having 2 was illustrated,
The present invention can also be applied to a case where a lamp is attached to a sun visor having a rotating door or a sun visor having no door.

Also, lamps for lighting have been exemplified as electric appliances. For example, various electric outlets, such as power outlets for connecting portable electric appliances such as small electric fans, navigation systems, radios, liquid crystal televisions, electric bulletin boards, and shavers, have been described. The switch structure illustrated as an example can be applied to a case where an electric appliance is attached to the visor main body 2.

Further, the ceiling of the vehicle interior is exemplified as the base, and the visor body of the sun visor is exemplified as the rotating member. However, the switch structure according to claim 1 is, for example, a spotlight, a television, an audio device, a navigation system, and the like. When the electrical device is supported by the swingable swinging position near the dashboard via the support shaft, when it is turned to the take-out position, the power supply circuit is connected between the electrical device body and the support shaft, and the storage device is moved to the storage position. A configuration can be adopted in which the power supply circuit is shut off when rotated. Further, the switch structure according to the present invention can be applied not only to the case where the power supply circuit is connected and disconnected between the rotating member side and the support shaft side, but also to the case where a simple electric signal is connected and disconnected as an electric circuit.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of the present invention, and is a partially broken front view of a sun visor rotated to a take-out position as viewed from the indoor side. Therefore, the front plate side of the visor main body is visible in FIG.

FIG. 2 is a perspective view showing a support block alone.

FIG. 3 is a perspective view showing a wiring state of a spindle and its periphery.

FIG. 4 is a partial perspective view of a mirror set. In this figure,
The door has been omitted.

FIG. 5 is a front view of a door alone.

FIG. 6 is a vertical sectional view of a switch block.

FIG. 7 is a vertical cross-sectional view of the visor body on a rotation support side. This figure shows a state when the robot is turned to the take-out position.

FIG. 8 is a vertical cross-sectional view of the visor main body on the rotation support side. This figure shows a state when the robot is turned to the storage position.

FIG. 9 is a schematic wiring diagram showing an electric circuit between a visor body (rotating member) and a spindle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 2 ... Visor main body 3 ... Support shaft, 3a ... Horizontal shaft part 10 ... Support block 13 ... Main body, 13a ... Projection part 15 ... Missing part 20 ... Switch block 21 ... Terminal plate 30 ... Mirror set 31 ... Frame body 32 ... Door 33 … Mirror 34… Lamp 40… Micro switch

Claims (4)

[Claims] 1. A switch structure for interrupting an electric circuit between a base and a rotating member rotatably supported via a support shaft attached to the base, the switch comprising: The switch structure of the rotation support portion, wherein the electric contact on the rotation member side and the electric contact on the support shaft side are separated by the rotation position of the rotation member, thereby interrupting the electric circuit. 2. A sun visor for a vehicle using the switch structure according to claim 1, wherein the sun visor is attached to a vehicle body, and is stored in a storage position along a vehicle ceiling and protrudes downward from the storage position. A visor body rotatably supported between the visor body and an electric appliance attached to the visor body and receiving power supply from the vehicle body side, wherein when the visor body is rotated to the storage position, A sun visor for a vehicle, wherein an electric contact on a visor main body side and an electric contact on the support shaft side are separated from each other to cut off a power supply circuit to the electric appliance. 3. The sun visor for a vehicle according to claim 2, wherein a door slidably provided along a surface direction of the visor body, and a power supply circuit for an electric appliance connected by opening the door. A vehicle sun visor including a door switch that is turned off when closed and shuts off the power supply circuit. 4. The sun visor for a vehicle according to claim 2, wherein the support shaft is formed of a conductive material, the support shaft itself is used as an electrical contact on the support shaft, and the support shaft is connected to the support shaft. When a notch is provided and the visor body is turned to the storage position,
A sun visor for a vehicle, wherein an electric contact on a visor body side is located in the cutout portion to cut off a power supply circuit.