JPH03121926A - Sunroof device for automobile - Google Patents

Abstract

PURPOSE:To make compact a sunroof device and in particular enable the reduction of the height thereof by jointing sequentially a guide rail or a cam groove at the side of a fixed roof and a cam groove at the side of a movable panel to each other via pins fitted to link and slider members. CONSTITUTION:When a movable panel 3 pulls a rear part slider member 17 from the totally closed position thereof, the intermediate pin 35 of a link member 18 moves along the rear part inclination part 31c of a fixed cam member 16. The link member 18, therefore, displaces down the forward end thereof and the panel 5 inclines down the rear edge thereof. In this case, when the guide projection 54 of the rear part slider member 17 is engaged with a groove 20 for lifting a movable cam member 15. Further more, when the rear part slider member 17 is pulled back, the inclination angle of the movable panel 4 is made larger. Also, each cam member is so arranged as to cause the overlapping laterally of the cam members 15 and 16 in the falling state of the panel 1. According to the aforesaid con struction, a vertical gap between a fixed roof 1 and a sun roof frame 4 can be reduced and effective cabin height can be increased.

Description

[Detailed Description of the Invention] [Object of the Invention] <Industrial> Second Field of Application> The present invention is capable of selectively moving the trailing edge up and down from a fully closed position where it is a continuous surface with respect to the outer surface of a fixed roof. The present invention relates to a sunroof device for an automobile having a movable panel configured to be stored on the rear inner surface of a fixed roof.

Prior Art> A movable panel provided in an opening formed in a part of a fixed roof of an automobile is made slidable along the inner surface of the fixed roof, and its rear edge side is tilted up as necessary. Sunroofs designed to achieve this are well known.

In this type of sunroof, the outer surfaces of the fixed roof and movable panel are generally made to form a continuous surface when fully closed, and the inner circumferential edge of the fixed roof and the outer circumferential edge of the movable panel Various technical devices have been devised to enable the movable panel to perform sliding and tilting operations again without causing mutual interference between the movable panel and the movable panel.

As a mechanism for realizing the above-described operation, for example, a slider member driven in the front-rear direction by a drive cable is engaged with a guide rail for guiding the movable panel, and
A cam member having two cam grooves for tilt-up and lift-down having vertical components is provided on the movable panel side, and a pin protruding from the slider member is engaged with the cam groove for lift-down. Japanese Patent Publication No. 55-15325 discloses a structure in which a plurality of pins protruding from the other end of a link member, one end of which is pivotally connected to a slider member, are engaged with a tilt-up cam groove. There is.

<Problems to be Solved by the Invention> The above structure attempts to raise the rear edge side of the movable panel by 1" by the upright movement of the link member whose other end is engaged with the tilt-up cam groove. However, by providing a plurality of pins that engage with the cam groove, a rigid connection relationship between the link and the cam groove is obtained. Therefore,
The upright angle of the link is restricted by the shape of the cam groove, and in order to increase the tilt-up height of the movable panel, the cam groove must be extended. Therefore, the size of the cam member tends to increase, and the range of movement of the slider member must also be increased, resulting in an increase in the size of the device.Furthermore, the head clearance is not affected, which is disadvantageous.

In view of these disadvantages of the prior art, the main object of the present invention is to provide a sunroof device for an automobile that is configured to be compact, particularly to reduce the height dimension.

[Structure of the Invention] <Means for Solving the Problems> According to the present invention, such an object relates to guide rails extending on both sides of a sunroof frame below an opening provided in a fixed roof. A sunroof device for an automobile, wherein a rear edge of a movable panel capable of closing the opening and closing the opening can be selectively displaced up and down from the fixed roof, the sunroof device being guided by the guide rail so as to be movable in the longitudinal direction. a link member whose proximal end is rotatably engaged with a slider member; and a link member that engages with an intermediate pin of the link member to assist in the upright and tilting movements of the link member. a fixed cam member having a cam surface and integrally provided on the sunroof frame, a tilt cam surface that engages with a pin on the distal end side of the link member so as to be relatively rotatable, and a guide protrusion of the slider member. This is achieved by providing a sunroof device for an automobile, characterized in that it includes a movable cam member having a lift cam surface and fixed to the inner surface of the movable panel. In particular, it is preferable that the fixed cam member and the movable cam member overlap each other in the lateral direction when the movable panel is in the lowered state.

<Operation> With this arrangement, when one end of the link member is first slid forward along the guide rail, the link member is erected by engagement with the cam surface of the fixed cam member. At this time, since one end of the link member that engages with the guide rail side and the other end of the link member that engages with the tilt cam surface formed on the movable cam member can both rotate relative to each other, the shape of the tilt cam surface The link member stands upright regardless of. This provides a relatively large tilt-up height.

Next, when the slider member is moved rearward, the link member tilts due to engagement with the cam surface of the fixed cam member, and at the same time, the lift cam surface of the movable cam member engages with one end of the link member, causing the movable cam The rear edge of the movable panel is pulled downward together with the member.

<Embodiments> Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an outline of an automobile roof to which the present invention is applied. The fixed roof 1 is formed with an opening 2 having a generally rectangular shape with its long side in the width direction of the vehicle body, and the opening 2 can be closed in a complementary manner with a movable panel 3 made of, for example, plate glass. ing.

A sunroof frame 4 formed by deep drawing a steel plate is fixed to the inner surface of the fixed roof 1.

This sunroof frame 4 includes an opening 2 of the fixed roof 1.
An indoor side listening port 5 is formed at a position corresponding to , and at a position along the side edge of the indoor side listening port 5 in the longitudinal direction of the vehicle body.
A pair of guide rails 6 are extended.

It should be noted that the various members constituting the present invention are arranged approximately symmetrically with respect to the center line in the longitudinal direction of the automobile, so the following explanation will mainly be given only to one side unless otherwise specified. shall be.

The movable panel 3 can move up and down on its rear edge via a front slide device 7 attached to the inner surface of its front end and a lifting device 8 attached to the inner surface of its rear side.
It is possible to move back and forth along the The movable panel 3 is moved up and down and opened/closed via a known push-pull cable 9, but since this drive unit is not directly related to the essence of the present invention, its explanation will be omitted.

As shown in FIG. 2, the guide rail 6 has an inner guide groove 10 having a U-shaped cross section formed on the inner side, and is formed back to back with this inner guide groove 10, and in two steps below the bottom. It has an upper guide groove 11 with a U-shaped cross section, a lower guide groove 12 with a C-shaped cross section, and an outer guide groove 13 with a U-shaped cross section formed on the outer side. extends over almost the entire length of the sunroof frame 4 in the front-rear direction, whereas the upper and lower guide grooves 1
1 and 12 and the outer guide groove 13 extend to the rear end of the guide rail 6, starting from a substantially intermediate position between the openings 2 and 5. A front slide device 7 and a sunshade 14, which will be described later, slide into the inner guide groove 10, and important parts of a lifting device 8, which will be described later, slide into the other guide grooves 11 to 13.

As shown in FIGS. 3 to 5, the lifting device 8 includes a movable cam member 15 (as a support member) fixed to the inner surface of the rear side of the movable panel 3 in parallel with the guide rail 6 described above.
A fixed cam member 16 is fixed to the sunroof frame 4 by engaging a part of it with the starting end of the outer guide groove 13 and fastening together with the guide rail 6, and a fixed cam member 16 whose both sides are connected to the lower guide groove 12 and the outer guide groove. 13 and connected to the push-pull cable 9 to be driven in the front-rear direction, and a link member 18 whose one end is pivotally connected to the front end of the rear slider member 17. There is.

The movable cam member 15 has a tilting cam groove 19 that extends forward from the intermediate portion generally horizontally and then slopes downward, and a lower end side that is open at the rear position of the tilting cam groove 19. A lift cam groove 20 whose upper side is tilted rearward is formed. At the same time, an outward pin 21 having a perfect circular cross section and protruding outward is located adjacent to the front end of the tilt I cam groove 1-9, and is located adjacent to the rear end of the tilt cam groove 19. Inwardly directed pins 22 each have an oval cross section and project inwardly.

A groove 23 is formed at the front end of the movable cam member 15 and is open toward the front and extends along a generally horizontal plane, and an internal thread 24 whose axis is oriented in the front-rear direction is formed at the rear end. . At the same time, a holder frame 26 fixed to the inner surface of the peripheral edge of the movable panel 3 via a sealing member 25 includes a front bracket 28 having a protruding pin 27 that can be engaged with the groove 23 described above; A rear bracket 29 is vertically provided with a vertical elongated hole 29a (FIG. 5) corresponding to the inner screw 24, and after engaging the groove 23 and the pin 27, the elongated hole 29a is inserted. The movable cam member 15 is attached to the holder frame 26 by screwing the bolt 30 onto the internal thread 24.
is fixed.

The fixed cam member 16 has slopes whose front sides slope upward at the front and rear sides of the horizontal part formed in the middle part, and partially cooperates with the upper inner surface of the outer guide groove 13. , a cam groove 31 is formed that is continuous in the front-rear direction and opens diagonally upward on the front side and diagonally downward on the rear side.

The rear slider member 17 has a horizontal portion 31. of the cam groove 31 that engages with the upper edge of the outer guide groove 13 and is marked with a ``1''. a
a cable holder 33 to which the end of the push-pull cable 9 is fixed and which engages with the lower guide groove 12; and a cable holder 33 that engages with the lift cam groove 2o of the movable cam member 1-5. A matching guide protrusion 34 is formed. As a result, the rear slider member 1.7 is regulated by both guide grooves 12, 1.7, and is pushed and pulled in the front-rear direction by the push-pull cable 9.

On the link member 18, an intermediate pin 35 that can be engaged with the cam groove 31 is protruded from the middle part, and a tip pin 36 that can be engaged with the tilt cam groove 19 of the movable cam member 15 is protruded from the other end. At the same time, a partial arcuate groove 37 is formed concentrically with the tip pin 36 so as to receive the outward pin 21 when the tip pin 36 reaches the front end of the tilt cam groove 19.

By the way, as shown in FIGS. 12 and 4, the above-mentioned front slide device 7 includes a slider bracket 38 fixed to the front end of the holder frame 26, and a pin whose axis is aligned in the width direction of the vehicle body. The slider stay 40 is rotatably engaged with the slider bracket 38 via a shaft 39, and a front slider member 41- provided on the slider stay 40 is engaged with the inner guide groove 10.

On the other hand, (referring again to FIG. 1), a drain channel 42 for catching water droplets is extended along the inner surface of the rear edge of the movable panel 3. This drain channel 42
is fixed at both ends to the upper surface of the drain channel slider 43 engaged with the guide rail 6 at the rear of the lifting device 8, and is integrally connected to the slider stay 40 of the front slide device 7 via a connecting rod 44. connected. This allows the drain channel 42 to slide integrally with the movable panel 3.

A locking bar 45 is pivotally supported on the inner surface of the drain channel slider 43 so as to be able to see-saw along a horizontal axis extending parallel to the tilting axis of the movable panel 3. This locking lever 45 has two arms extending in the front and back direction around the pivot shaft 46, and is always torsionally biased by a torsion spring 47 provided surrounding the pivot shaft 46. Usually, the guide rail 6
The rear end 45a is engaged with a locking hole 48 formed in the bottom wall of the holder.

Next, the operation procedure of the above embodiment will be explained.

In the fully closed position shown in FIG. 4, the outer surface of the fixed roof 1 and the outer surface of the movable panel 3 form a substantially continuous curved surface. At the same time, the rear end 45a of the locking lever 45 is in a state of protruding into the locking hole 48 of the guide rail 6, and both the drain channel slider 43 and the drain channel 42 cannot be moved in the front-back direction. Further, the drain channel 42 and the front slide device 7 are connected via a connecting rod 44, and therefore, in this state, the movement of the movable panel 3 in the front and back direction is restricted. At this time, the guide protrusion 34 of the rear slider member 17 is positioned away from the open end of the lift cam groove 2o, and the intermediate 3 pin 35 of the link member 18 is positioned at the horizontal portion 31a of the cam groove 31 of the fixed cam member 16. The tip pin 36 is located at the rear end and approximately in the middle of the horizontal portion 19a of the tilt cam groove 19.

From this, when the rear slider member 1.7 is pushed forward with the push-pull cable 9, the horizontal portion 3 of the cam groove 31
1a, the intermediate pin 35 moves, and therefore the tip pin 3
6 also moves approximately horizontally. When the tip pin 36 is engaged with the inclined portion 19b of the tilt cam groove 9, the movable panel 3 is moved along the pin shaft 3 of the front slide device 7 according to this inclination angle.
The rear end is tilted upward using 9 as a fulcrum (Fig. 6).

When the rear slider member 17 is further advanced, the intermediate bin 35 engages with the front inclined portion 31b of the fixed cam members 1 and 6.
At the same time, the outer part 721 enters the partial arc groove 37 of the link member 1.8, and the link member 18 stands up (Fig. 7).
.

When the rear slider member 17 is further pushed out, the partial arc groove 3
The outward pin 21 abuts against the terminal end of the rear slider member 17, and the pivot surface 18a of the link member 18 complementarily engages with the upper surface 174a of the clevis portion of the rear slider member 17, resulting in a toggle state, and the movable panel 3 is tilted up. The state is maintained with high rigidity (Fig. 8).

When the rear slider member 17 is pulled in the opposite direction to the above,
The movable panel 3 is closed and returned to the fully open position shown in FIG.

Next, when the rear slider section 17 is pulled rearward from the fully closed position, the intermediate pin 35 of the link member 18 moves along the rear inclined section 31c of the fixed cam member 1-6. Therefore,
The link member 18 displaces its front end downward, and the movable panel 3 causes its rear edge to tilt downward.

Here, when the guide protrusion 34 of the rear slider member 17 engages with the lift cam groove 20 of the movable cam member 15 and the rear slider member 17 is further pulled rearward, the backward tilt angle of the movable panel 3 becomes even larger.

As described above, the movable roof 1 is forcibly lowered by the engagement of each cam and each pin, and stable closure is possible even when suction force due to negative pressure acts on the movable roof 1 during high-speed driving. becomes.

5 On the other hand, the bolt 30 at the rear end of the movable cam member 15 pushes down the front end 45b of the locking lever 45, thereby releasing the engagement between the rear end 45a of the locking lever and the locking hole 48 of the guide rail 6. Figure 9). At the same time, the inward pin 22 of the movable cam member 15 enters into the upper guide groove ]-1 from the notch 11a of the upper guide groove 11 shown in FIG. The vertical position of is specified so that there is no play.

As shown in FIG. 9, each cam member is arranged so that the movable cam member 15 and the fixed cam member 16 can overlap in the horizontal direction when the movable panel 3 is in the lowered state. The vertical distance between the sunroof frame 4 and the sunroof frame 4 can be reduced, and the effective height inside the vehicle interior can be increased.

From this, when the rear slider member 17 is pulled and driven further rearward, the movable panel 3 also slides rearward together with the drain channel slider 43 and the drain channel 42.
The entire movable panel 3 is housed inside the fixed roof 1.

[Effects of the Invention] As described above, according to the present invention, the cam groove provided on the guide rail, that is, the fixed roof side, and the cam groove provided on the movable panel side are provided on the link member and the slider member. By sequentially connecting the cam grooves with a pin, it is possible to obtain the desired opening/closing operation with a relatively short cam groove dimension. Also,
In particular, since the link member can stand upright, a relatively large lift can be obtained, which is extremely effective in reducing the height of the lifting device. Particularly, when the link member is in an upright tilted state, extremely high rigidity can be obtained by the engagement between the partially arcuate groove at the end of the link member and the outward pin of the movable cam member.

[Brief explanation of drawings]

FIG. 1 is a partial top view showing an outline of an automobile roof to which the present invention is applied, and FIG. 2 is a longitudinal cross-sectional view taken along the line ■-■ in FIG. FIG. 3 is an enlarged top view of the lifting device, and FIG. 4 is a partially cut away side sectional view showing the movable panel in the closed position. FIG. 5 is an exploded perspective view showing the configuration of the lifting device. Figures 6 and 7 are partial side sectional views showing the process of the tilt I-up operation, Figure 8 shows the state in the fully tilted up position, and Figure 9 shows the state in the lift down position. FIG. 4 is a side sectional view similar to FIG. 3; 1... Fixed roof 2... Opening 3... Movable panel 4... Sunroof frame 5... Indoor side opening 6... Guide rail 7... Front slide device 8... Lifting device 9... Push-pull cable 10... Inner guide groove 11... Upper guide groove 11
a... Notch 12... Lower guide groove 13...
-Outer guide groove 14...Sunshade 15...Movable cam member 16...Fixed cam member 17...Rear slider member 18...Link member 19...Tilt cam mechanism 1
9a...Horizontal part 19b...Slanted part 8 20...Lift cam groove 21...Outward pin 22...
・Inward pin 23...concave groove 24...internal thread
25... Seal member 26... Holder frame 2
7... Pin 28... Front bracket 29... Rear bracket 29a... Long hole 30... Bolt 31... Cam groove 31a... Horizontal part 31b.
...Front inclined part 31c... Rear inclined part 32... Guide protrusion 33... Cable holder 34... Guide protrusion 35... Intermediate bin 36... Tip bin
37...Partial arc groove 38...Slider bracket 39...Bin shaft 40...Slider stay 4
1... Front slider member 42... Drain channel 43... Drain channel slider 44... Connecting rod 45... Locking lever 45a
... Rear end 45b ... Front end 46 ... Pivot shaft 47 ... Torsion spring 48 ... Locking hole 9 JP-A-3 121926 (9) JP-A-3-121926 (11)

Claims (2)

[Claims] (1) The rear edge of the movable panel that can engage guide rails extending on both sides of the sunroof frame below the opening provided in the fixed roof and can close the opening is moved above and below the fixed roof. An automotive sunroof device that is selectively displaceable, the link member (18) having its proximal end rotatably engaged with a slider member (17) that is movably guided by the guide rail in the longitudinal direction. ) and an intermediate pin (35) of the link member.
a fixed cam member (16) provided integrally with the sunroof frame and having cam surfaces (31a to 31c) of longitudinal and vertical components to engage with the link member and assist the upright and tilting movements of the link member; , the pin on the tip side of the link member (
a movable cam member (15) fixed to the inner surface of the movable panel, the movable cam member (15) having a tilt cam surface that engages with the movable panel (36) in a relatively rotatable manner and a lift cam surface that engages with the guide protrusion (34) of the slider member. An automotive sunroof device characterized by: (2) The sunroof device for an automobile according to claim 1, wherein the fixed cam member and the movable cam member overlap each other in the lateral direction when the movable panel is in the lowered state.