JP3533558B2 - Sunshade device for vehicles - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle sunshade device in which an opening formed in a roof of a vehicle can be opened and closed by a light-shielding sunshade, and more particularly to a guide rail structure for guiding the sunshade.

[0002]

2. Description of the Related Art Conventionally, a sunshade device disposed on a roof of a wagon vehicle or the like has a sunshade disposed below a translucent sunroof lid for opening and closing an opening formed in the roof for the purpose of shielding light. , A guide rail which is disposed on the side of the opening in the front-rear direction and supports the sunshade slidably in the front-rear direction. The sunshade is movable between a fully closed position that closes the opening below the sunroof lid and a fully open position that is housed in a storage part formed between the roof and the ceiling of the vehicle compartment, and the guide is also provided. The rail has slidable vertically slidable sliding members provided on both sides of the sunshade so as to be slidable, and has guide grooves for guiding the sunshade along a desired locus. This guide groove has a front straight portion, a rear straight portion higher than the front straight portion,
It has an inclined portion which is arranged between the front and rear straight portions and which gently inclines rearward and upward. The sunshade is accommodated in the accommodating portion while being displaced upward by the sliding member moving from the front straight portion through the inclined portion to the rear straight portion (for example, see Japanese Utility Model Laid-Open No. 3-70515). ).

[0003]

In the conventional sun shade device described above, for example, when the sliding member behind the sun shade moves into the inclined portion when the sun shade moves from the fully closed position to the fully open position, the sun shade moves backward. The end is displaced upward, and at that time, the front sliding member is guided by the straight portion and moves horizontally, so that the movement loci of the front and rear sliding members differ, and the rear sliding member slides at the inclined portion. There is a problem that the amount of bending of the member changes, the sliding operation force of the sunshade does not become constant, and a smooth sliding operation cannot be obtained.

In view of the above-mentioned problems of the prior art, the present invention has a simple structure so that the sliding operation force of the sunshade is always constant to enable smooth opening / closing operation. It is intended to provide a sunshade device.

[0005]

According to the present invention, the above problems can be solved as follows. (1) A guide rail provided with a guide groove having a substantially horizontal straight portion that faces the front-rear direction and an inclined portion that is continuous with the straight portion is provided on the side of an opening formed in a roof of a vehicle. For a vehicle in which a sliding member that is provided on a side portion of the sunshade that opens and closes the opening, has a length in the front-rear direction larger than a dimension in the up-down direction, and is elastically deformable in the up-down direction is slidably fitted. In the sunshade device, the upper and lower surface spacing in the vertical direction of at least the intermediate portion of the inclined portion of the guide groove,
And larger than the vertical upper and lower spacing of the linear portion, and the sliding
When the moving member passes through the inclined portion, the sliding member moves forward.
The upper and lower surfaces of the inclined part can always be contacted.

(2) In the above item (1), either the upper or lower surface of the front and rear ends of the sliding member is a convex curved surface.

[0007] (3) In the above (1) or (2) of the upper and lower either side of the sliding member, and a convex curved top portion is positioned at the center of the sliding member, and the upper and lower other Is a corrugated surface having two convex curved surfaces whose tops are located near the front and rear ends.

[0008]

The drawings show an embodiment of the invention. 3 and 4, (1) is the roof of the vehicle, (2)
Is a light-transmissive material such as glass whose front end is pivotally supported by a hinge (1a) at the front edge of the opening formed in the roof (1) and whose rear end can be vertically moved up and down. It is a sunroof lid, and below the sunroof lid (2) are a front sunshade (3) and a rear sunshade arranged side by side.
(4) is mounted so as to be slidable in the front-rear direction by guide rails (5) provided in both sides of the opening and a storage part (1b) described later and directed in the front-rear direction.

Front and rear sunshades (3) (4)
As shown in FIG. 3, below the sunroof lid (2), the front end of the rear sunshade (4) is abutted against the rear end of the front sunshade (3) to close the openings side by side. Fully closed position and, as shown in FIG.
It can be moved to a fully open position where it is housed in the housing (1b) formed below the roof (1) behind the opening so as to be vertically stacked in two steps.

The guide rail (5) has a first guide groove (5a) which extends from near the front end to near the rear end and slidably supports the front sunshade (3) from the fully closed position to the fully opened position. A second guide groove (5b) which slidably supports the rear sunshade (4) from the fully closed position to the fully open position, extending from near the center of the opening below the guide groove (5a) to near the rear end of the guide rail (5). And two grooves are formed. In the lower part near the center in the front-rear direction of the second guide groove (5b), there is a recess (5
c) is formed.

The first guide groove (5a) is connected to a substantially horizontal front straight line portion (5d) extending rearward from the front end and a rear end of the front straight line portion (5d), and is gently inclined rearward and upward. Slope
(5e) and the rear end of the front sloped portion (5e),
d) The middle straight part (5f) which extends slightly higher than the d) and extends substantially horizontally to the rear, and the rear slope part (5g) which is connected to the rear end of the middle straight part (5f) and gently inclines rearward and upward. ) And the rear slope
(5g) Rear straight part (5h) which is continuous to the rear end, slightly higher than the middle straight part (5f) and extends almost horizontally to the rear end
It consists of The front sloped part (5e) has a second guide groove (5e).
It is located above the front end of b), and the rear inclined part (5g) is located almost directly above the recessed part (5c).

[0012] the front and rear inclined portion of the first guide groove (5 a) (5e)
(5 g) in the vertical direction of the groove width of each intermediate portion, i.e. between the upper and lower surfaces <br/> interval (W2) are vertical grooves of each linear portion (5d) (5f) (5h )
The width, that is, the space between the upper and lower surfaces (W1) is slightly larger (only the front inclined portion (5e) is illustrated in FIG. 1).

An operation portion (3a) which is recessed upward is formed on the lower surface of the center of the front portion of the front sunshade (3), and the side plates (10) similarly fixed to both right and left sides have the same operation as shown in FIG.
Further, as shown in FIG. 6, a pair of front and rear sliding members (6) slidably fitted in the first guide groove (5a) of the guide rail (5) are provided.

Each sliding member (6) is formed of an elastically deformable synthetic resin material or the like into a substantially flat plate shape whose overall length in the front-rear direction is larger than the dimension in the up-down direction. It has a downward convex shape and its top is a sliding member.
The convex curved surface (6a) located in the center of (6) is formed, and the upper surface has a waveform of two upward convex curved surfaces (6b) (6b) whose tops are located near the front and rear ends in a side view. It is elastically deformable. Also, like the upper surface, the side surface of each sliding member (6) facing in the left-right direction is a waveform formed by connecting two convex curved surfaces (6c) (6c) whose tops are located near the front and rear ends in plan view. The first guide groove (5a)
Front sunshade by pressing on the side of
The rattling in the left and right direction of (3) is prevented.

By making the sliding member (6) such a shape, the sliding member (6) can be straightened to the first guide groove (5a).
Convex curved surface (6a) in the vertical direction of (5d) (5f) (5h)
(6b) (6b) slides in contact with the guide groove at three points to allow stable sliding, and when the inclined parts (5e) (5g) pass or when the front sunshade (3) is inclined, At least two points of the convex curved surfaces (6a) and (6b) come into contact with the upper and lower surfaces of the guide groove and can slide smoothly. Also, the sliding member (6)
When the sliding member (5d) (5f) (5h) reaches the inclined portion (5e) (5g) of the first guide groove (5a) or the front sunshade (3) is inclined, The contact point between the guide groove 6) and the guide groove smoothly moves along the curved surface, and the sliding member (6) can smoothly slide without causing a stick phenomenon or the like, and the contact point moves. As a result, it is possible to prevent the wear from being locally concentrated.

Straight portions (5d) (5f) of the first guide groove (5a)
The upper and lower spacing (W1) in the vertical direction of (5h) is almost the same as the vertical spacing of the tops of the upper and lower convex curved surfaces (6b) and (6a) when the sliding member (6) is horizontal, or the compression margin. only small city, also the front and rear inclined portions (5e) vertically of the upper and lower surfaces between <br/> interval of each intermediate portion (5g) (W2) is as large than the vertical spacing (W1). In this way, by increasing the distance (W2) between the upper and lower surfaces of the inclined portions (5e) (5g), the longitudinal direction of the inclined portions (5e) (5g) and the longitudinal direction of the sliding member (6) can be It is possible to absorb the increase in the effective width when the slanted portions (5e) (5g) of the sliding member (6) due to the difference in direction are passed. The distance (W2) between the upper and lower surfaces of the inclined portions (5e) (5g) is such that when the sliding member (6) passes through it, the sliding member (6) does not rattle and the sliding member (6) does not rattle. The upper and lower surfaces of (6) are at least one point each, and are always in contact with the upper and lower surfaces of the front and rear inclined portions (5e) and (5g) with some elastic deformation, and the sliding member (6) is slightly up and down. It is preferable to set the value so that it can be inclined in the direction.

A side plate (10) connecting front and rear sliding members (6) (6) on each side surface of the front sunshade (3) is fixed to the side surface of the front sunshade (3),
At the rear end of (0), a vertical contact portion (10a) and an inclined portion (10b) that is inclined downward toward the front below the contact portion (10a) are formed, and further, the lower edge (10c). A check portion (10d) that is recessed upward is formed at a slightly front portion of ().

Sliding members (7) protruding in the left-right direction are fixed to the left and right front portions of the rear sunshade (4). As shown in FIGS. 5 and 6, each sliding member (7) has a contact portion (10) of the side plate (10) of the front sunshade (3).
a) and an abutted portion (7a) capable of abutting the inclined portion (10b), and a side plate
(10) Elastic tongue (7b) slidable on the lower edge (10c) and engageable with the check portion (10d) and elastically deformable in the vertical direction
And a pin (7c) slidably fitted in the second guide groove (5b) and capable of falling into the drop portion (5c),
It is formed integrally. Also, rear sunshade (4)
A sliding member (4a) slidably fitted in the second guide groove (5b) is fixed to the rear portions of the left and right sides of the.

In FIG. 5, (8) is a hook member pivotally supported on the rear portion of the front sunshade (3), and (9) is fixed to the front portion of the rear sunshade (4) and is attached to the hook member (8). It is an engaged / disengageable member. The hook member (8) is biased downward by a spring (not shown), and the front sunshade (3) slides forward from the fully opened position to a position where it is almost half out of the storage section (1b). When it reaches, the pin (7c) of the sliding member (7) which has engaged with the engaged member (9) and has fallen into the drop portion (5c) is pulled out from the drop portion (5c), and the rear sunshade ( After displacing the front end of 4) upward, they both slide in the direction of the fully closed position.

In the fully closed state shown in FIG. 3, the front sunshade (3) and the rear sunshade (4) have their rear end and front end butted against each other, and are positioned in front and rear on substantially the same horizontal plane without a step and open. Is blocked. Further, the front and rear sliding members (6) of the front sunshade (3) are fitted in the front straight portion (5d) of the first guide groove (5a). From this fully closed state, when the front sunshade (3) is slid backward by placing a finger on the operation portion (3a), as shown in FIG.
The rear sliding member (6) moves from the front straight portion (5d) to the front inclined portion (5e).
And the front sunshade (3) slides backward while the rear part is displaced upward, and the side plate (10)
The contacting part (10a) of the contacting part contacts the contacted part (7a) of the sliding member (7) and pushes the rear sunshade (4) rearward, so that the front sunshade (3) and the rear sunshade (4) are connected to each other. Both slide toward the fully open position.

When the rear part of the front sunshade (3) is displaced upwards, the sliding member (6) at the front part of the front sunshade (3) slides on the front straight part (5d), and the sliding member at the rear part ( In 6), since the front inclined portion 5e moves, the movement loci of the respective sliding members 6 differ, and the front sunshade 3 tilts slightly to the front, but the movement locus Differences and inclinations are absorbed by the front inclined portion (5e) having a large distance between the upper and lower surfaces in the vertical direction. That is, as shown in FIG. 1, when the rear sliding member (6) moves from the position shown by the imaginary line to the position shown by the solid line, it has a lower convex curved surface (6a) and a first guide groove (5a). ) Is a convex curved surface with the bottom
The contact point between the upper surface of the sliding member (6) and the upper end surface of the first guide groove (5a) moves from almost the center of (6a) to the rear, and the contact points of the front and rear convex curved surfaces (6b) and (6b) are The two points move to a point slightly forward of the apex of the front convex curved surface (6b), and mainly a portion slightly anterior to the apex of the front convex curved surface (6b) elastically deforms. At this time, the amount of bending of each convex curved surface (6a) (6b) of the rear sliding member (6) is substantially constant whether it is in the front straight portion (5d) or in the front inclined portion (5e). The front straight portion (5d) and the front inclined portion of the rear sliding member (6) are kept at
The sliding resistance when passing (5e) is almost constant, and the front sunshade (3) can always be slid with a constant operating force. Also, the sliding member (6) at the front part is
Even when passing through e), there are differences in the movement trajectories of the front and rear sliding members (6) and the inclination of the front sunshade (3),
They are absorbed in the same manner as described above.

The entire rear sunshade (4) is accommodated in the accommodating portion (1b), and the pin (7c) of the sliding member (7) is
When reaching the drop-in portion (5c), the pin (7c) is dropped through the contacted portion (7a) by the inclined portion (10b) of the side plate (10).
It is pushed into c) and the front end of the rear sunshade (4) is displaced downward. At that time, the sliding member (6) at the rear part of the front sunshade (3) enters the rear slanted part (5g), which causes a difference in the movement paths of the front and rear sliding members (6), or the front sunshade. Although (3) tilts, those deviations are absorbed in the same manner as described above.

Further, when the front sunshade (3) is slid toward the fully open position, the lower edge (10c) of the side plate (10) makes sliding contact while bending the elastic tongue (7b) downward, and the first guide groove ( 5a) is guided by the rear straight part (5h) and slides while displacing above the rear sunshade (4), and as shown in FIG. 4, the front sunshade (3) and the rear sunshade (3).
(4) and (2) are vertically stacked and completely housed in the housing part (1b) to be fully opened.

Next, when the front sunshade (3) is operated toward the fully closed position by placing a finger on the operating portion (3a) from the fully opened state, the front sunshade (3) slides forward and is stored in the storage portion (1b). When the hook member (8) engages with the engaged portion (9) when it is pulled out from the
After pulling out (7c) from the drop-in part (5c) and displacing the front part of the rear sunshade (4) upward, slide both the front sunshade (3) and the rear sunshade (4) forward, The rear end of the sunshade (3) and the front end of the rear sunshade (4) are almost in abutment with each other, completely closing the opening.

It should be noted that the front and rear sliding members (6) have front and rear inclined portions.
Even when passing through (5e) and (5g) in the direction of the fully closed position, the difference in movement locus and the inclination of the front sunshade (3) are absorbed as described above.

In the above-mentioned embodiment, the sunshade is described as having a two-divided structure, but the sunshade is not limited to this and can be applied to the case of a single sunshade.

[0027]

According to the invention of claim 1, the vertical upper and lower surface spacing of at least the middle portion of the inclined portion of the guide groove is larger than the vertical upper and lower surface spacing of the straight portion. And then
Two sliding members are always installed on the upper and lower surfaces of the straight section and the inclined section.
With a simple structure that allows for the occasional contact, the sliding resistance of the sliding member when the sliding member of the sunshade passes through the inclined portion of the guide rail can be made substantially the same as when the sliding member passes through the straight portion. , The sun shade can be smoothly slid with a constant operation force. Furthermore, sliding
Since the moving member is always in contact with the upper and lower surfaces of the inclined part, the sliding member
Prevents the sliding member from rattling when passing through an inclined part
can do.

(B) According to the second aspect of the invention, when the sliding member reaches from the straight portion of the guide groove to the inclined portion, or when the sunshade is inclined, the contact point between the sliding member and the guide groove becomes large. It moves smoothly along the curved surface, and the sliding member can slide smoothly without causing sticking phenomenon, etc., and also prevents the localized concentration of wear by moving the contact points. can do.

(C) According to the invention described in claim 3, in the sliding member, the linear portion of the guide groove is slid into the guide groove at a total of three points, one of which is one of the upper and lower sides and the other of which is two points. It can come into contact and slide stably, and at the time of passing through the inclined portion or when the sunshade is inclined, it can come into contact with the guide groove at least at two points above and below and can slide smoothly.

[Brief description of drawings]

FIG. 1 is a side view showing a situation when a sliding member according to an embodiment of the present invention passes through an inclined portion of a guide groove.

FIG. 2 is likewise a vertical cross-sectional side view of the sunshade when the sunshade is in the half-opened state.

FIG. 3 is likewise a vertical cross-sectional side view of the roof when the sunshade is fully closed.

FIG. 4 is likewise a vertical cross-sectional side view of the roof when the sunshade is fully open.

FIG. 5 is likewise a perspective view of a front sunshade and a rear sunshade.

FIG. 6 is a side view showing the relationship between the side plate on the front sunshade side and the sliding member on the front part of the rear sunshade.

[Explanation of symbols]

(3) Front sunshade (4) Rear sunshade (5) Guide rail (5a) First guide groove (5b) Second guide groove (5d) Straight section in front (5e) Front slope (5f) Middle straight section (5g) Rear slope (5h) Rear straight part (6) Sliding member (6a) (6b) (6c) Convex curved surface (7) Sliding member (7a) Abutted part (7b) Elastic tongue (7c) pin (9) Engaged part (10) Side plate (10a) Abutment part (10b) Inclined part (10c) Lower edge (10d) Check section

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Kaihei 3-122915 (JP, U) Saikai 1-132419 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B60J 7/02

Claims (3)

(57) [Claims] 1. A side of an opening formed in a roof of a vehicle,
A guide rail provided with a guide groove having a substantially horizontal straight portion that faces the front-rear direction and an inclined portion that is continuous with the straight portion is provided, and the guide groove is provided on a side portion of the sunshade that opens and closes the opening. In a vehicle sunshade device having a length in the front-rear direction larger than a dimension in the up-down direction and slidably fitted with a sliding member that is elastically deformable in the up-down direction, in at least an intermediate portion of an inclined portion of the guide groove. Up and down
The upper and lower spacing, Daito than the vertical upper and lower spacing of the straight portions
And when the sliding member passes through the inclined portion,
The sunshade device for a vehicle, wherein the sliding member is always in contact with the upper and lower surfaces of the inclined portion . 2. The vehicle sunshade device according to claim 1, wherein one of upper and lower surfaces of front and rear ends of the sliding member is a convex curved surface. The upper and lower either side of 3. A sliding member, and a convex curved top portion is positioned at the center of the sliding member, and the upper and lower on the other side, towards the end portions of the top front and rear 3. A corrugated structure having two convex curved surfaces positioned therein.
The vehicle sunshade device described.