JP2013252739A - Vehicle sun visor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily expand a range in which a sun visor body is able to block light.SOLUTION: A vehicle sun visor includes: a sun visor body 20; a support shaft mounted on a ceiling surface of a vehicle cabin and configured to support the sun visor body 20 at a turning center position such that the same is turnable between a storage position at which the sun visor body 20 is oriented along the ceiling surface of the vehicle cabin and a use position at which the sun visor body is able to block light; a damper 26 configured to apply braking force at the time when the sun visor body 20 turns; and a slide mechanism 23, 250, and 260 configured to hold the sun visor body 20 such that the same may be able to slide in an axial direction of the support shaft with respect to the support shaft.

Description

  The present invention relates to a vehicle sun visor configured such that a sun visor body can be rotated between a storage position along a ceiling surface of a vehicle compartment and a use position where light can be shielded.

A conventional vehicle sun visor related to this is described in Patent Document 1.
As shown in FIG. 14, the vehicle sun visor 100 includes a sun visor main body 101 and a support shaft 103 attached to a ceiling surface of a passenger compartment by a bracket 102. The sun visor body 101 is configured to be rotatable about the axis of the support shaft 103 between a retracted position along the ceiling surface of the passenger compartment and a use position where light can be shielded.
As shown in FIG. 14, a bearing portion 105 of a support shaft 103 is provided inside the sun visor body 101, and a leaf spring 105 b that sandwiches the support shaft 103 from the radial direction is set on the bearing portion 105. . The leaf spring 105b is configured to hold the sun visor body 101 in the light shielding position and to apply a rotational force in the storage position direction when the sun visor body 101 is returned to the vicinity of the storage position. For this reason, when the sun visor main body 101 is in the vicinity of the storage position, the sun visor main body 101 is returned to the storage position by the spring force of the leaf spring 105b and is held at the storage position.
Further, as shown in FIG. 15, a damper 107 to which the tip of the support shaft 103 is connected is provided inside the sun visor body 101. The damper 107 applies a braking force to the rotation of the sun visor body 101 with respect to the support shaft 103, and functions to suppress the rotation speed when the sun visor body 101 rotates in the retracted position direction by the spring force of the leaf spring 105b. To do. Thereby, unpleasant noise caused by hitting the ceiling surface when the sun visor body 101 is stored can be suppressed.

JP 2002-012028 A

However, in the above-described vehicle sun visor 100, as shown in FIG. 15, the tip 103f of the support shaft 103 is connected to the rotating shaft 107r of the damper 107 by the connecting pin 108, and the damper 107 is fixed to the sun visor body 101. Yes. For this reason, the sun visor body 101 cannot slide in the axial direction of the support shaft 103 with respect to the support shaft 103.
Therefore, for example, when the sun visor body 101 shields sunlight that is inserted from the direction close to the front, if the sunlight is inserted from the diagonally left front by turning the vehicle to the right, etc. It is difficult to shield the sun visor body 101 from light.

  The present invention has been made to solve the above problems, and a technical problem of the present invention is to make it possible to easily expand the light shielding range of the sun visor body.

The above-described problems are solved by the inventions of the claims.
The invention of claim 1 is attached to a sun visor main body and a ceiling surface of the passenger compartment, and the sun visor main body can be rotated between a storage position along the ceiling surface of the passenger compartment and a use position where light can be shielded. A sun visor for a vehicle comprising a support shaft that supports the sun visor body at a rotation center position, and a damper that applies a braking force when the sun visor body rotates, wherein the sun visor body is in the axial direction of the support shaft with respect to the support shaft It has a slide mechanism that holds it slidably.

According to the present invention, the sun visor body can be slid in the axial direction of the support shaft with respect to the support shaft by the slide mechanism.
For this reason, it is possible to efficiently shield not only sunlight that is inserted from the front direction into the driver's seat, but also sunlight that is inserted obliquely from the front. For example, if the sun visor body blocks light from the direction close to the front, the sun visor body can be attached to the spindle even if the sun turns in from the left front by turning the car to the right. It can be handled by sliding leftward.
As described above, by providing the slide mechanism, the light shielding possible range of the sun visor body can be easily expanded.

According to the invention of claim 2, the damper includes a rotor and a rotor case that supports the rotor so as to be rotatable about an axis, and the rotor has an axial direction and a circumferential direction with respect to the support shaft. The rotor case is held by the sun visor body so that it can slide relative to the sun visor body in a direction along the axis of the support shaft and cannot rotate relative to the sun visor body. It is characterized by that.
Thereby, also in a sun visor provided with a damper, the sun visor body can be slid in the axial direction of the support shaft with respect to the support shaft.

According to a third aspect of the present invention, the damper includes a rotor and a rotor case that supports the rotor so as to be rotatable about an axis, and the rotor is not rotatable relative to the support shaft and has a shaft. The rotor case is held by the sun visor body in a state in which the rotor case is not relatively movable in the axial direction and the circumferential direction with respect to the sun visor body.
Thereby, also in a sun visor provided with a damper, the sun visor body can be slid in the axial direction of the support shaft with respect to the support shaft.

  According to the present invention, the light shielding range of the sun visor body can be expanded.

It is a model perspective view showing the interior of a passenger car provided with the sun visor for vehicles concerning Embodiment 1 of the present invention. It is a side view showing the rotation range of the sun visor main body of the said sun visor for vehicles. It is a perspective view showing the spindle and bracket of the sun visor for vehicles. It is the perspective view (A figure) which looked at the back side shell which comprises the sun visor main body of the said sun visor for vehicles from the back side, and the perspective view which looked at the front side shell which comprises a sun visor main body from the back side (B figure). It is the perspective view which looked at the damper built in the said sun visor main body, the bearing part, the slide rail, and a part of spindle from the front side of the sun visor main body. It is a disassembled perspective view of the damper, the bearing part, and slide rail which are incorporated in the said sun visor main body. It is a schematic cross section perpendicular to the axis of the leaf spring portion of the bearing portion. It is a schematic cross section (A figure, B figure) showing the effect | action of the said leaf | plate spring. It is the schematic diagram (A figure) showing the structure of the said damper, and the B section enlarged view (B figure) of A figure. It is a schematic diagram showing the rotation prevention structure of the spindle with respect to the said damper, and the prevention structure of the spindle with respect to a bearing part. It is a schematic diagram (AC figure) showing the example of a change of the rotation prevention structure of the spindle with respect to the rotor of the said damper. It is a schematic diagram (A figure, B figure) showing the example of a change of the insertion structure of the spindle with respect to the rotor of the said damper. It is a model perspective view showing the example of a change of the attachment structure of the bearing part and damper of a sun visor main body. It is a partially broken perspective view showing the conventional sun visor for vehicles. It is a perspective view showing the connection structure of the spindle and damper in the conventional vehicle sun visor.

[Embodiment 1]
Hereinafter, the vehicle sun visor according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 13. Here, front and rear, right and left, and upper and lower in the figure correspond to front and rear, left and right, and top and bottom of the vehicle to which the vehicle sun visor is attached.

<About the outline of the vehicle sun visor 10>
As shown in FIG. 1, a vehicle sun visor 10 (hereinafter referred to as a sun visor 10) is attached by a bracket 12 to a substantially rectangular sun visor main body 20 that blocks sunlight entering the vehicle interior and a ceiling surface 4 of the vehicle interior. The support shaft 30 is provided. The support shaft 30 is composed of a linear horizontal shaft 32 and a vertical axis 38 provided on the base end side of the horizontal shaft 32, and the vertical axis 38 is about the axis with respect to the bracket 12. It is connected in a rotatable state. Further, the horizontal shaft 32 of the support shaft 30 is inserted into the upper side position (see FIG. 1) of the sun visor body 20 so as to be relatively rotatable along the upper side. Thereby, as shown in FIG. 2, the sun visor body 20 has a support shaft 30 (horizontal axis 32) between the storage position K along the ceiling surface 4 of the passenger compartment and the use limit position P along the windshield 7 of the passenger compartment. It is possible to rotate around the axis. Here, the sun visor body 20 receives a rotational force in the direction of the storage position K between the storage position K and the bias start position M (see FIG. 2) as described later. Further, between the urging start position M and the use limit position P, the sun visor body 20 receives a holding force that is held at the rotation stop position so that the sun visor body 20 does not rotate due to the rotating force due to its own weight. In the state where the sun visor body 20 is between the bias start position M and the use limit position P, the sun visor body 20 can block sunlight, and this position is the use position of the sun visor body 20.
That is, the area between the storage position K and the bias start position M is referred to as a storage position direction rotation area, and the area between the bias start position M and the use limit position P is referred to as a holding area.
Further, the sun visor main body 20 is moved to the position of the door window 8 as shown by the two-dot chain line in FIG. Can do.
Further, as shown in FIG. 1, an interior lamp 5 that can be lit in conjunction with the rotation operation of the sun visor body 20 is provided at the storage position of the sun visor body 20 on the ceiling surface 4 of the passenger compartment.

<About the spindle 30>
The support shaft 30 is composed of a cylindrical shaft body, and an electric wire connected to the electric circuit of the room light 5 is passed through the support shaft 30. As shown in FIG. 3, the horizontal axis 32 of the support shaft 30 includes a large-diameter portion 321 on the base end portion side formed in a large diameter and a small-diameter portion on the distal end side formed in a smaller diameter than the large-diameter portion 321. 322. A tapered portion 321t whose diameter is gradually changed is provided at a boundary position between the large diameter portion 321 and the small diameter portion 322 of the horizontal shaft 32. Further, a detent protrusion 323 that is a protrusion protruding radially outward is provided from the tapered portion 321t to the proximal end portion of the small diameter portion 322.
The tip portion of the large-diameter portion 321 of the horizontal shaft 32, that is, the position in the vicinity of the tapered portion 321t is a portion that passes through a bearing portion 25 of the sun visor body 20 described later, and is one place in the circumferential direction of the outer peripheral surface of this portion Is flattened to form a leaf spring contact flat surface 321b.
In addition, an electrode portion 324 that operates when the sun visor body 20 described later rotates from the storage position K to the use position with respect to the support shaft 30 (horizontal shaft 32) is provided at the tip of the small diameter portion 322 of the horizontal shaft 32. It has been.

<About the sun visor body 20>
As shown in FIGS. 4A and 4B, the sun visor body 20 is formed in a hollow plate shape by combining a shell-like front side shell 21 and a back side shell 22. The front side shell 21 and the back side shell 22 are molded by, for example, injecting resin into a mold. Here, the front side of the sun visor body 20 refers to a surface on the side facing the occupant when the sun visor body 20 is in a use position where light can be shielded. In FIG. 4B, the back side of the front side shell 21 is shown in order to make the inside of the front side shell 21 easier to see.
As shown in FIG. 1, a square recess 21h is formed on the surface of the front shell body 21 of the sun visor body 20 at a position on the right side of the center, and the square mirror unit 20m is fitted into the square recess 21h. It has become.
Further, as shown in FIG. 4B, a slide rail 23, a bearing portion 25, a damper 26, and a switch 27 are disposed inside the front shell body 21 of the sun visor body 20 at a position corresponding to the upper side of the sun visor body 20. Is provided.

As shown in FIGS. 4 to 6, the slide rail 23 is a linear rail having an L-shaped cross section, and is attached along the upper side of the sun visor body 20 to connect the bearing portion 25 and the damper 26 to the sun visor body 20. It is comprised so that it can connect to. That is, as shown in FIGS. 5 and 6, the case 250 of the bearing portion 25 and the rotor case 260 of the damper 26 are formed with L-shaped through holes 251 and 261 having a substantially L-shaped cross section. The slide rail 23 is inserted into the L-shaped through holes 251 and 261. For this reason, the bearing portion 25 and the damper 26 can move along the slide rail 23 and are held around the axis of the slide rail 23 so as not to rotate relative to each other.
At both end positions of the slide rail 23, through holes 23n are formed. Further, inside the front shell 21, female screw holes (not shown) are formed on both the left and right sides of the position corresponding to the upper side of the sun visor body 20, and as shown in FIG. A through hole 23n of the slide rail 23 is overlaid on the screw hole. Further, a through hole 22n is formed in the back side shell 22 at a position corresponding to the female screw hole (not shown) of the front side shell 21 (see FIG. 4A). For this reason, the front rail 21 can be screwed together with the slide rail 23 and the back shell 22.
The switch 27 is fixed to the inside of the front shell 21 on the left side of the slide rail 23 (on the right side in FIG. 4), and the electrode receiving portion 27a into which the electrode portion 324 at the tip of the support shaft 30 is inserted; The switch unit 27b is operated by being pushed by the lid 20x when the lid 20x (see FIG. 1) of the mirror unit 20m is opened.

<About the bearing 25>
The bearing portion 25 supports the large-diameter portion 321 of the horizontal shaft 32 of the support shaft 30 and applies a rotational force in the storage position K direction between the storage position K and the bias start position M to the sun visor body 20. A holding force that can be held at the current position can be applied between the force start position M and the use limit position P.
As shown in FIGS. 5 to 7, the bearing portion 25 includes a case 250 through which the slide rail 23 passes and a leaf spring 24 housed in the case 250. The case 250 is formed in a substantially H-shaped side surface, and L-shaped through holes 251 through which the slide rails 23 are passed are formed at the left and right ends of the lower part. In addition, bearing main bodies 253 through which the large-diameter portion 321 of the horizontal shaft 32 of the support shaft 30 is passed are formed at the left and right ends of the upper portion of the case 250. A rectangular notch 253k is formed at the lower end position of the bearing body 253. As a result, when the horizontal shaft 32 of the support shaft 30 is passed through the bearing body 253, the anti-rotation protrusion 323 of the horizontal shaft 32 can pass through the rectangular cutout portion 253k.
As shown in FIG. 6, the case 250 is provided with a slider 257 that is pressed against the upper surface of the slide rail 23 by the spring force of the spring 256. As a result, it is possible to prevent backlash when the case 250 of the bearing portion 25 slides with respect to the slide rail 23.
Further, a claw receiving portion 258 on which a connection claw 265 provided on a rotor case 260 of the damper 26 described later is hung is provided at the left end position of the case 250.

  The leaf spring 24 of the bearing portion 25 is fitted between the left and right bearing bodies 253 of the case 250. As shown in FIGS. 7 and 8, the leaf spring 24 includes a substantially trapezoidal surrounding portion 241 that presses the outer peripheral surface of the large-diameter portion 321 of the horizontal shaft 32 at two locations at intervals of about 120 ° in the circumferential direction. The U-shaped spring part 244 bent into a hairpin shape continuously to the surrounding part 241 and the other end side of the U-shaped spring part 244 are provided at intervals of about 120 ° with respect to the surrounding part 241 in the circumferential direction. And a flat plate portion 245 that presses the outer peripheral surface of the large-diameter portion 321 of the horizontal shaft 32 from the position where the shaft is placed. The width dimension of the flat plate portion 245 of the plate spring 24 (the width dimension in the direction along the axis of the horizontal shaft 32) is the axial length of the plate spring contact plane 321b formed in the large diameter portion 321 of the horizontal shaft 32. It is set equal to the size. Further, the width dimension of the surrounding part 241 and the U-shaped spring part 244 of the plate spring 24 is set to a value sufficiently larger than the width dimension of the flat plate part 245.

When the sun visor body 20 is in the use position (between the bias start position M and the use limit position P), as shown in FIG. 8 (A), the surrounding portion 241 and the flat plate portion 245 of the leaf spring 24 are Both press the outer peripheral surface of the large-diameter portion 321 of the horizontal shaft 32, and the spring force applied to the central direction of the large-diameter portion 321 of the horizontal shaft 32 is balanced in the circumferential direction. For this reason, the large-diameter portion 321 of the horizontal shaft 32 is tightened from the periphery by the spring force of the leaf spring 24, and rotation by the weight of the sun visor body 20 relative to the horizontal shaft 32 of the support shaft 30 is prohibited. That is, the sun visor body 20 is held at the use position.
Further, when the sun visor body 20 is between the retracted position K and the biasing start position M, the surrounding portion 241 of the leaf spring 24 is connected to the large diameter portion 321 of the horizontal shaft 32 as shown in FIG. In contrast to pressing the outer peripheral surface, the flat plate portion 245 presses a part of the leaf spring contact flat surface 321b of the large diameter portion 321. Thereby, the balance of the spring force applied to the large-diameter portion 321 of the horizontal shaft 32 is broken in the circumferential direction, and a rotational force in the storage position K direction is applied to the sun visor body 20.
That is, the leaf spring 24 of the bearing portion 25 corresponds to the biasing member of the present invention.

<About damper 26>
The damper 26 applies a braking force to the rotation of the sun visor body 20 in the retracted position K direction so that no unpleasant noise is generated when the sun visor body 20 contacts the ceiling surface 4 of the passenger compartment at the retracted position K. Is for. As shown in FIG. 9A, the damper 26 includes a cylindrical rotor 270 and a rotor case 260 that supports the rotor 270 so as to be rotatable about its axis.
The rotor case 260 of the damper 26 is formed with an L-shaped through hole 261 through which the slide rail 23 of the sun visor body 20 passes at the lower position, and the rotor is disposed on the side surface of the lower position as shown in FIG. A connecting claw 265 that connects the case 260 and the case 250 of the bearing portion 25 is formed.
Further, at the upper position of the rotor case 260 of the damper 26, there is a bearing portion (not shown) that supports the rotor 270 so as to be rotatable about the axis, and as shown in FIG. 9A, around the bearing portion. A ring-shaped hydraulic chamber 263 is provided. On the inner peripheral surface of the hydraulic chamber, a stepped partition wall 263t is provided at one place in the circumferential direction so as to protrude inward in the radial direction from the inner peripheral surface by a certain dimension.

As shown in FIG. 9A, the rotor 270 includes a cylindrical rotor main body 272 through which the small diameter portion 322 of the horizontal shaft 32 of the support shaft 30 passes. As shown in FIG. 6, the right end portion of the rotor main body 272 protrudes in the axial direction from the rotor case 260, and a rotation stop projection 323 formed on the horizontal shaft 32 of the support shaft 30 is fitted to the right end portion. A stop notch 272k is formed. That is, in the rotor 270, the small diameter portion 322 of the horizontal shaft 32 of the support shaft 30 is inserted into the rotor main body 272, and the anti-rotation protrusion 323 of the horizontal shaft 32 is engaged with the non-rotation notch 272 k of the rotor main body 272. Thus, the shaft 30 is held so as not to rotate relative to the horizontal shaft 32 of the support shaft 30.
On the outer peripheral surface of the rotor main body 272 of the rotor 270, as shown in FIG. 9A, a hydraulic pressure receiving portion 274 formed in a flange shape is provided coaxially. Then, with the rotor main body 272 of the rotor 270 being accommodated in the bearing portion of the rotor case 260, the hydraulic pressure receiving portion 274 of the rotor 270 is accommodated in the hydraulic chamber 263 of the rotor case 260. A partition wall 274 t is formed on the hydraulic pressure receiving portion 274 of the rotor 270 so that one place in the circumferential direction protrudes radially outward. Further, as shown in FIG. 9B, the partition wall of the hydraulic pressure receiving portion 274 is a tapered oil that effectively allows oil to pass when the rotor 270 rotates forward and makes it difficult for oil to pass when the rotor 270 rotates reversely. A passage 274j is formed.

With the above configuration, when the rotor 270 rotates forward with respect to the rotor case 260, the oil pushed by the partition 274t of the hydraulic pressure receiving portion 274 of the rotor 270 is formed between the partition 274t and the inner peripheral surface of the hydraulic chamber 263 of the rotor case 260. And the oil passage 274j of the partition wall 274t. Further, the oil passes between the partition wall 263 t of the hydraulic chamber 263 of the rotor case 260 and the outer peripheral surface of the hydraulic pressure receiving portion 274 of the rotor 270. Thereby, the braking force of the damper 26 becomes a relatively small value.
On the other hand, when the rotor 270 rotates reversely with respect to the rotor case 260, the oil pushed by the partition 274t of the hydraulic pressure receiving portion 274 of the rotor 270 can hardly pass through the oil passage 274j of the partition 274t. For this reason, the braking force of the damper 26 becomes larger than that during forward rotation.

<Assembly of sun visor body 20 and spindle 30>
Next, assembly of the sun visor body 20 and the support shaft 30 will be described.
First, as shown in FIG. 4B, the switch 27 is attached to a predetermined position of the front shell 21 of the sun visor body 20. Next, as shown in FIG. 10, the phase of the rotation stop notch 272 k of the rotor 270 of the damper 26 is matched with the phase of the notch 253 k provided in the bearing body 253 of the case 250 of the bearing 25. That is, the rotor 270 of the damper 26 is rotated to hold the rotation-stop notch 272k downward. In this state, the slide rail 23 is passed through the L-shaped through hole 261 of the rotor case 260 of the damper 26 and the L-shaped through hole 251 of the case 250 of the bearing portion 25. And the damper 26 and the bearing part 25 are connected by engaging the connection nail | claw 265 formed in the rotor case 260 of the damper 26 with the nail | claw receiving part 258 of the case 250 of the bearing part 25 (refer FIG. 5). Next, the through-holes 23n at both ends of the slide rail 23 are aligned with the female screw holes (not shown) of the front-side shell 21, and the through-holes 22n of the back-side shell 22 are further aligned with the female screw holes (not shown) of the front-side shell 21. Accordingly, both the slide rail 23 and the back shell 22 are screwed to the front shell 21. In this state, the attachment of the damper 26 and the bearing portion 25 to the sun visor body 20 is completed.
That is, the L-shaped through hole 261 of the rotor case 260 of the damper 26, the L-shaped through hole 251 of the case 250 of the bearing portion 25, and the slide rail 23 correspond to the slide mechanism of the present invention.

Next, with the anti-rotation protrusion 323 of the horizontal shaft 32 of the support shaft 30 facing downward as shown in FIG. 10, the horizontal shaft 32 is inserted from the right side of the sun visor body 20 to the upper side position of the sun visor body 20. To do. At this time, since the distal end side of the horizontal shaft 32 of the support shaft 30 is a small diameter portion 322, the small diameter portion 322 is smoothly passed through the bearing body 253 and the leaf spring 24 of the bearing portion 25, and the large diameter portion 321 is passed through. It can be led to the position of the bearing body 253 and the leaf spring 24. Here, the rotation prevention protrusion 323 formed between the small-diameter portion 322 and the large-diameter portion 321 of the horizontal shaft 32 is held downward, and the phase of the notch portion 253k formed in the bearing body 253 of the bearing portion 25. It is adapted to. For this reason, the detent protrusion 323 of the horizontal shaft 32 can pass through the notch 253k of the right bearing body 253, and the large-diameter portion 321 of the horizontal shaft 32 can be inserted into the bearing portion 25.
That is, the large-diameter portion 321 of the horizontal shaft 32 that has passed through the right bearing body 253 is inserted into the leaf spring 24 while being pushed in the left direction, and further inserted into the bearing body 253 on the left side (damper 26 side). Then, after the non-rotating protrusion 323 of the horizontal shaft 32 passes through the notch 253k of the left bearing body 253, it fits with the notch 272k of the anti-rotation of the damper 26 (rotor body 272) in phase with the notch 253k. Come together. This position is the insertion limit position of the horizontal shaft 32, and the plate spring contact plane 321 b formed in the large-diameter portion 321 of the horizontal shaft 32 has a position in the axial direction of the flat plate provided on the plate spring 24 of the bearing portion 25. It coincides with the position of the portion 245 in the axial direction.

The small-diameter portion 322 on the distal end side of the horizontal shaft 32 that has passed through the bearing portion 25 is passed through the rotor body 272 of the rotor 270 of the damper 26, and then the distal end portion of the small-diameter portion 322, that is, the electrode portion 324 is switched. 27 is inserted into the electrode receiving portion 27a.
In this way, with the horizontal shaft 32 of the support shaft 30 inserted into the sun visor main body 20 to the insertion limit position, the sun visor main body 20 is rotated about the axis with respect to the horizontal shaft 32. As a result, the rotor case 260 of the damper 26 attached to the sun visor body 20 rotates with respect to the rotor 270 of the damper 26 engaged with the horizontal shaft 32 of the support shaft 30. Further, the bearing portion 25 and the switch 27 which are also attached to the sun visor body 20 are rotated with respect to the horizontal shaft 32 of the support shaft 30. As a result, the anti-rotation protrusion 323 of the horizontal shaft 32 that has passed through the notch 253k of the bearing body 253 on the left side (damper 26 side) of the bearing portion 25 rotates with respect to the notch 253k of the bearing body 253. The main body 253 is hung on the outside. Thereby, the horizontal shaft 32 of the support shaft 30 is prevented from coming off from the sun visor body 20.
For this reason, the damper 26 and the bearing portion 25 of the sun visor body 20 are held so as not to move relative to the horizontal shaft 32 of the support shaft 30 in the axial direction. Here, the damper 26 and the bearing portion 25 are configured to be movable along the slide rail 23 fixed to the sun visor body 20. Therefore, the sun visor body 20 can be slid by the length of the slide rail 23 with respect to the horizontal shaft 32 of the support shaft 30, the damper 26, and the bearing portion 25.

<About the operation of the sun visor 10 according to this embodiment>
Next, the operation of the sun visor 10 according to the present embodiment will be described.
When the sun visor 10 is used, the sun visor body 20 at the storage position K is held and rotated to the use position. At this time, until the biasing start position M is exceeded, the rotational torque of the leaf spring 24 that tries to rotate in the storage position K direction with respect to the sun visor main body 20 works, so the sun visor main body 20 is moved with a force exceeding the rotational torque. Rotate. Here, when the sun visor body 20 is rotated in the direction of the use position, the rotational force due to the weight of the sun visor body 20 acts in the rotation direction. Further, since the rotor 270 of the damper 26 rotates forward, the braking force is reduced. For this reason, the operation in the use position direction of the sun visor main body 20 becomes easy.
When the sun visor body 20 exceeds the urging start position M, the spring force of the leaf spring 24 is balanced in the circumferential direction and acts in the direction of tightening the horizontal shaft 32 of the support shaft 30. Accordingly, when the rotation of the sun visor body 20 is stopped at the use position, the sun visor body 20 is held at the current position by the spring force of the leaf spring 24.
It is also possible to slide the sun visor body 20 with respect to the horizontal axis 32 of the support shaft 30 at the use position.
Further, when the sun visor body 20 rotates to a position exceeding the bias start position M (use position), the electrode portion 324 provided at the tip of the horizontal shaft 32 of the support shaft 30 operates by the action of the electrode receiving portion 27a of the switch 27. To do. For this reason, when the lid 20x of the mirror unit 20m is opened and the switch main body 27b of the switch 27 is operated, the interior light 5 on the ceiling surface 4 of the passenger compartment is turned on.

When storing the sun visor 10, the sun visor body 20 in the use position is rotated to the urging start position M against the clamping force (holding force) of the leaf spring 24 and the braking force of the damper 26. And since the rotational torque of the leaf | plate spring 24 which is going to rotate to the storage position K direction with respect to the sun visor main body 20 is added from the urging | biasing start position M, the sun visor main body 20 is set to the storage position K with the rotational torque of the leaf | plate spring 24. Will come back.
When the sun visor body 20 is returned from the urging start position M to the storage position K, the weight of the sun visor body 20 is applied in the direction opposite to the rotation.

<Advantages of the sun visor 10 according to this embodiment>
According to the sun visor 10 according to the present embodiment, the sun visor body 20 can be slidably held in the axial direction of the horizontal shaft 32 with respect to the support shaft 30 (horizontal shaft 32).
For this reason, it is possible to efficiently shield not only sunlight that is inserted from the front direction into the driver's seat, but also sunlight that is inserted obliquely from the front. For example, if the sun visor body 20 shields sunlight from a direction close to the front, even if the sunlight turns into the left diagonally by turning the vehicle to the right, the support shaft 30 (horizontal axis 32 ) By sliding the sun visor body 20 leftward.
Thus, by allowing the sun visor body 20 to slide in the axial direction of the horizontal axis 32, the light shielding possible range of the sun visor body can be easily expanded.

<Example of change>
Here, the present invention is not limited to the above-described embodiment, and can be modified without departing from the gist of the present invention. For example, in the present embodiment, as a rotation stop of the horizontal shaft 32 of the support shaft 30 with respect to the rotor 270 of the damper 26, a notch 272k for rotation prevention is formed on the rotor 270, and a rotation stop protrusion 323 is provided on the horizontal shaft 32. The example which fits 272k, 323 is shown.
However, as shown in FIG. 11 (A), a protrusion 272e is formed on the inner peripheral surface of the rotor body 272 of the rotor 270, and the protrusion 272e is fitted on the outer peripheral surface of the small diameter portion 322 of the horizontal shaft 32. It is possible to prevent rotation by forming 322f. Further, as shown in FIG. 11B, it is possible to prevent rotation by forming the inner side of the rotor body 272 into a square shape and forming the small diameter portion 322 of the horizontal shaft 32 into a prism shape. Further, as shown in FIG. 11 (C), a through hole that is continuous in the radial direction is formed from the rotor main body 272 of the rotor 270 to the small diameter portion 322 of the horizontal shaft 32, and a rotation prevention pin 272p is inserted into this through hole. But it is possible.
Further, in the present embodiment, an example in which the horizontal shaft 32 of the support shaft 30 is inserted through the rotor 270 of the damper 26 is shown. However, depending on the type of sun visor, as shown in FIGS. 12A and 12B, a configuration in which the tip of the horizontal shaft 32 of the support shaft 30 is held in the rotor 270 of the damper 26 is also possible.
In the present embodiment, as shown in FIG. 5, the damper 26 and the bearing portion 25 are held so as not to move relative to the horizontal axis 32 of the support shaft 30 in the axial direction. An example in which both of them can be moved along the slide rail 23 has been shown. However, as shown in FIG. 13, the damper 26 and the bearing portion 25 are separated, the damper 26 is directly attached to the sun visor body 20, and the horizontal shaft 32 of the support shaft 30 is not rotatable relative to the rotor 270 of the damper 26. Further, it is possible to adopt a configuration in which the bearing portion 25 which is held so as to be slidable in the axial direction and which is connected to the horizontal shaft 32 is moved along the slide rail 23.
Moreover, in this embodiment, the example which connects the damper 26 and the bearing part 25 using the connection nail | claw 265 and the nail | claw receiving part 258 was shown. However, it is also possible to connect the damper 26 and the bearing portion 25 by screws or welding. Further, for example, it is possible to connect by using another part such as an E-ring. Furthermore, the cases 250 and 260 of the damper 26 and the bearing portion 25 can be integrally formed.
Moreover, in this embodiment, the example which comprises the spindle 30 from a cylindrical shaft body was shown. However, the support shaft 30 can also be configured from a solid shaft body.
Furthermore, in this embodiment, the example which forms the L-shaped through-holes 251 and 261 which let the slide rail 23 pass to the cases 250 and 260 of the damper 26 and the bearing part 25 was shown. However, as long as it is a hole that allows the slide rail 23 to pass through in a relatively unrotatable manner, the L-shaped through hole is not particularly required.
In the present embodiment, the tapered oil passage 274j is formed in the partition wall 274t of the hydraulic pressure receiving portion 274 in the rotor 270 of the damper 26, so that the rotor 270 rotates normally (the sun visor body 20 rotates in the use direction). In this example, it is easy to pass oil, and it is difficult for oil to pass when the rotor 270 reversely rotates (the sun visor body 20 rotates in the retracted direction). However, instead of forming the tapered oil passage 274j in the partition wall 274t, an inclination is provided on the outer peripheral surface of the partition wall 274t so that oil can easily pass through when the rotor 270 rotates forward (the sun visor body 20 rotates in the direction of use). However, it is possible to make it difficult for oil to pass when the rotor 270 rotates in the reverse direction (the sun visor body 20 rotates in the retracted direction). Further, it is possible to provide an inclination on the outer peripheral surface of the partition wall 274t and to form an oil passage 274j.

10 ... Sun visor 20 ... Sun visor body 23 ... Slide rail (slide mechanism)
26 ... Damper 260 ... Rotor case 261 ... L-shaped through hole (sliding mechanism)
270 .. Rotor 30... Support shaft 32 .. Horizontal axis (support shaft)

Claims (3)

A sun visor main body and a support that is attached to the ceiling surface of the passenger compartment and supports the sun visor main body at a rotational center position so that the sun visor main body can rotate between a storage position along the ceiling surface of the passenger compartment and a light-shielding use position. A vehicle sun visor comprising a shaft and a damper that applies a braking force when the sun visor body rotates.
A vehicle sun visor comprising a slide mechanism for holding a sun visor body so as to be slidable in the axial direction of the support shaft with respect to the support shaft. The vehicle sun visor according to claim 1,
The damper includes a rotor and a rotor case that supports the rotor so as to be rotatable about an axis.
The rotor is held so as not to move relative to the support shaft in the axial direction and the circumferential direction,
The vehicle sun visor, wherein the rotor case is held by the sun visor body in a state that the rotor case is slidable in a direction along the axis of the support shaft with respect to the sun visor body and is not relatively rotatable. The vehicle sun visor according to claim 1,
The damper includes a rotor and a rotor case that supports the rotor so as to be rotatable about an axis.
The rotor is held so as not to be relatively rotatable with respect to the support shaft and to be relatively movable in the axial direction.
The vehicle sun visor is characterized in that the rotor case is held by the sun visor body in a state in which the rotor case cannot move relative to the sun visor body in the axial direction and the circumferential direction.

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