JPH06104415B2 - Lifting device for sun roof - Google Patents

Description

TECHNICAL FIELD The present invention relates to a sunroof lifting device, and more particularly to a vehicle sunroof lifting device having a tilt-up function and a slide-open function.

[Prior Art] Generally, in a vehicle sunroof device, a lid is arranged in an opening formed in a vehicle body roof, and the shoe runs along a pair of guide rails extending in the front-rear direction of the vehicle on the left and right of the opening. It supports with the link mechanism. By driving this shoe by a driving means such as a motor, a link mechanism is operated by a cam provided on the shoe to move the lid up and down to open and close the vehicle roof opening.

Conventionally, as a lifting device combining such a cam and a link mechanism, for example, one described in Japanese Utility Model Laid-Open No. 58-73018 is known.

In this device, a connecting rod is connected to an opening / closing operator (hereinafter referred to as a shoe) having an inclined guide groove as a cam groove so as to be vertically swingable, and a free end side of this connecting rod is referred to as a lid (hereinafter referred to as a lid). ) Is rotatably connected to. An elongated hole is provided in the center of the connecting rod, and one engaging pin is commonly engaged with the elongated hole and the inclined guide groove of the shoe.

Then, by moving the shoe along the guide rail, the connecting rod is swung via the engaging pin by the inclined guide groove which is the cam groove, and the lid is moved up and down.

[Problems to be Solved by the Invention] However, in such a conventional lifting device, the center of rotation of the connecting rod is always constant, and the swing amount that determines the lifting amount of the lid is the inclination provided on the shoe. Since it is determined by the height difference between the start point and the end point of the guide groove, the height difference between the start point and the end point of the inclined guide groove must be large in order to increase the amount of elevation.

As a result, there is a problem that the height of the shoe is inevitably increased. The high height of the shoe means that when the lid is slid to open the opening of the roof, the thickness of the accommodation portion under the roof that accommodates the lid and the shoe is increased, and the vehicle interior space is narrowed. This is not preferable.

In particular, in a sunroof device having a tilt-up function that has been highly demanded in recent years, it is demanded that the amount of lifting and lowering of the lid be increased, and the conventional device described above does not have such a function. When adding such a function, the above-mentioned problem becomes more remarkable.

Therefore, an object of the present invention is to solve the problems of the above-described conventional device, and to provide a sunroof elevating device in which the height of the shoe that drives the lid can be reduced, and thus the sunroof device can be made thinner overall. is there.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an opening formed in a vehicle body roof, a lid arranged in the opening, and a vehicle front-rear direction on both sides of the opening. A pair of guide rails, a front shoe that can travel along the guide rails and rotatably supports the front side of the lid, and a link member that drives the rear side of the lid to move up and down. A drive shoe which has an elevating guide groove with which two drive pins provided on the link member engage and which can travel along the guide rail; and the elevating guide groove has at least a parallel portion and a parallel portion. A first and a second inclined portion which are continuously formed on both sides of the drive shaft and have end points on the same side with respect to the parallel portion, respectively. Rotation of link member It is characterized in that the centers of are set differently.

[Operation] According to the present invention, the lid connected via the drive shoe that runs along the guide rail and the link member provided with the two drive pins that engage with the vertical guide groove of the drive shoe, As the drive shoe moves, the lifting operation is performed.

The shape of the up-and-down guide groove of the drive shoe is set so that the center of rotation of the link member is different between the tilt-up movement and the tilt-down movement of the drive shoe. The start point and the end point have almost the same height.

Therefore, the height of the drive shoe can be reduced, and the sunroof device as a whole can be made thin.

Embodiments Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 to 5 show a first embodiment of the present invention.

In the figure, 10 is a roof panel that constitutes the roof of the vehicle body, and has a substantially rectangular opening 10A. 20
Is attached to the lower side of the roof panel 10, that is, the inner surface side,
It is a frame that forms a storage portion 20A of the lid 30 between the roof panel 10 and the roof panel 10, and has a configuration that surrounds the front edge and the side edge of the rectangular opening 10A as is well known.

The frame 20 is driven integrally by a pair of guide rails 20B extending at least on the left and right sides of the opening 10A in the front-rear direction of the vehicle, and a motor (not shown) provided near the center of the front edge of the opening 10A. A cable guide groove 20C is provided.

30 is a glass lid, and a retainer is provided all around the lid.
It is attached to 30A with an adhesive 30B, is provided with a sealing elastic body 30C on the outer peripheral edge, and is attached to a bracket 30D via a retainer 30A.

Reference numeral 40 is a front shoe having a tongue portion 40A that engages with the guide rail 20B, and one end of the bracket 30D is rotatably supported around the pin 40B at its front portion.

Reference numeral 42 is a rear shoe having a tongue portion 42A that engages with the guide rail 20B, and one end of the first link member 44 is rotatably supported around the pin 42B at its front end portion. The rear shoe 42 has an engagement groove 43A at the front end and an engagement piece 43B at the rear end that is engageable with a hole 20D formed in the bottom surface of the guide rail 20B, and is biased in the engagement direction by a spring (not shown). The hook lever 43 is rotatably supported around the pin 42C.

Reference numeral 46 is a drive shoe that has a tongue portion 46A that engages with the guide rail 20B and is provided with an elevating guide groove 47, and an end portion of a drive cable 48 that is driven by a motor is fixed (fourth). See figure). A second link member 50, one end of which is pivotally supported by a pin 44A at a substantially central portion of the first link member 44, in the elevating guide groove 47.
Two first and second drive pins 50 implanted at the other end of the
A and 50B are engaged.

The lifting guide groove 47 moves the second link member 50 to the first drive pin by moving the first parallel portion 47A for holding the lid 30 in the closed state (see FIG. 2) and the drive shoe 46 in the vehicle front direction. Rotate in the counter-clockwise direction around 50A to rotate the lid 3
A first inclined portion 47B for tilting up 0, a second parallel portion 47C for holding the tilted up state, and a lid 30 by rotating the second link member momentarily clockwise immediately before shifting from the closed state to the tilted up. The second link member is rotated in the clockwise direction around the second drive pin 50B by the movement of the recessed portion 47D for facilitating the movement of the drive shoe and the drive shoe 46 in the rearward direction of the vehicle, and the lid 30 is tilted down. The second inclined portion 47E, which is reversely inclined with respect to the first inclined portion 47B, for holding the tilt-down state (see FIG. 3).
It has a parallel portion 47F (see FIG. 1).

The drive shoe 46 has an engagement pin 46B at the rear end thereof, and the engagement pin 46B engages with the engagement groove 43A of the hook lever 43 described above in the tilt-down state shown in FIG.
By rotating counterclockwise about 2C and disengaging the engagement piece 43B from the hole 20D, the rear shoe 42 can be moved backward, that is, the lid 30 can be stored.

The first link member 4 is provided near the rear end of the bracket 30D.
The end of 4 is rotatably connected around the connecting pin 44B.

Reference numeral 52 is a drip channel fixed to the rear shoe 42 (see FIGS. 1 to 3).

In the sunroof lifting device having the above-mentioned configuration, the second
When the drive shoe 46 is driven in the vehicle front direction by the drive cable 48 from the closed state of the lid 30 shown in the figure, first the second
After the drive pin 50B has once dropped into the recess 47D, the first inclined portion
The second link member 50 is moved upward along the inclination of 47B and is rotated counterclockwise around the first drive pin 50A. Due to the rotation of the second link member 50, the first link member 44 supported by the rear shoe 42 locked to the guide rail 20B rotates clockwise, and the lid 30 has its rear end with the pin 40B as the center of rotation. Lifted and tilted up.

When the drive shoe 46 further moves toward the front of the vehicle, the first drive pin 50A remains in the first parallel portion and the drive pin 50B moves to the second position.
It engages with the parallel portion 47C and is maintained in the tilt-up state (see FIG. 1).

When the drive shoe 46 is driven in the rearward direction of the vehicle from the tilt-up state as described above, the lid 30 in which both drive pins 50A and 50B are both present in the first parallel portion 47A is obtained (see FIG. 2).

Next, in order to obtain the slide open state in which the opening 10A is opened, the drive shoe 46 is driven in the vehicle rearward direction from the state shown in the second illustration, and this time the first drive pin 50A is moved along the second inclined portion 47E. It is moved upward to rotate the second link member 50 clockwise about the second drive pin 50B, rotate the first link member 44 counterclockwise about the pin 42B, and rotate the lid 30 about the pin 40B. The rear end is lowered so-called tilt down.
Finally, the second drive pin 50B remains in the first parallel portion 47A, the first drive pin 50A engages with the third parallel portion 47F, and the tilt-down state is maintained. In this state, the drive shoe 46 comes into contact with the rear shoe, the above-described engagement pin 46B engages with the engagement groove 43A of the hook lever 43, and the hook lever 43 is rotated counterclockwise to form the hole with the engagement piece 43B. 20D is disengaged, rear shoe 42 is ready to run, and drive shoe 46
By continuing to drive the vehicle in the rearward direction, the lid 30 is pulled into the storage portion 20A while being guided by the guide rail 20B.

Next, FIG. 6 shows a second embodiment of the present invention.

This embodiment differs from the previous embodiment mainly in the disposition of the link member that drives the rear side of the lid. Therefore, different points will be mainly described, and functionally the same parts will be denoted by the same reference numerals as in the previous embodiment to avoid redundant description.

In FIG.
Second with individual first and second drive pins 50A and 50B
The link member 50 is rotatably connected to the bracket 30D around the connection pin 44B together with the other end of the first link member 44 whose one end is rotatably supported around the pin 42B of the rear shoe 42.

The hook lever 43 pivotally supported by the rear shoe 42 in the previous embodiment is provided on the front shoe 40 in this embodiment and is rotatably supported around the pin 40C. An engaging piece 43B at one end of the hook lever 43 is engageable with a hole 20D also formed in the bottom surface of the guide rail 20B, and the other end thereof has a protruding end portion 43 protruding from the rear end of the front shoe 40.
C is formed.

Further, the bracket 30D is in contact with the protruding end portion 43C of the lid 30 when tilting down, and pushes down the pushing end portion 43C to rotate the hook lever 43 to release the engagement with the hole 20D of the engaging piece 43B.
30E is formed.

The other structure is the same as that of the first embodiment.

In the sunroof elevating / lowering device according to the second embodiment of the present invention having the above structure, the drive shoe is the same as in the previous embodiment.
By driving 46 toward the front of the vehicle, the tilt-up state shown in FIG. 6 is obtained, and from the state shown in FIG.
By driving 46 toward the rear of the vehicle, although not shown, the lid 30 is closed, and the lid 30 is further advanced to obtain a tilt-down state. Bracket 30D in this tilt down state
The push-down portion 30E pushes down the projecting end portion 43C of the hook lever 43, and the engagement piece 43B of the hook lever 43 is disengaged, so that the front shoe 40 can travel and the drive shoe 46 continues in the rearward direction of the vehicle. By moving the lid 30 storage section 20A
It is stored inside.

Since the configuration in which the center of rotation of the second link member 50 is made different between tilting up and tilting down by driving the driving shoe 46 is the same as in the previous embodiment, a duplicated description will not be given.

In the present embodiment, since the second link member 50 directly drives the bracket 30D that is integral with the lid 30, the vertical movement amount is somewhat limited, but mechanical loss is small and rattling occurs. It has the effect that it can be reduced.

Further, in both of the embodiments described above, the link member 50 has a vertical guide groove shape for differentiating the center of rotation between tilt-up and tilt-down, and is located on the same side with respect to the first parallel portion 47A for obtaining the closed state of the lid 30. Since the first and second inclined portions 47B and 47E each having an end point (start point) are formed in a continuous shape, the height of the drive shoe 46 can be reduced.

Further, in the closed state of the lid 30, the second link member
50 has the two first and second drive pins 50A and 50B engaged with each other in the first parallel portion 47A of the elevating guide groove 47 with a predetermined gap, so that the second link member 50 Rotation is completely prevented, and the supporting rigidity of the lid 30 is kept extremely high. Therefore, the lid 30 can be prevented from rising or sinking.

[Effects of the Invention] As is apparent from the above description, according to the present invention, the height of the drive shoe can be reduced and the sunroof device can be configured to be thin as a whole even though the amount of lifting and lowering of the lid can be increased. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view showing a lid tilt-up state of a first embodiment of the present invention, FIG. 2 is a side sectional view showing a lid closed state, and FIG. 3 is the same. FIG. 4 is a sectional side view of the lid in a tilted down state, FIG. 4 is a sectional view taken along the line AA of FIG. 2, FIG. 5 is a sectional view taken along the line BB of FIG. 2, and FIG. It is a sectional side view which shows the lid tilt up state of the Example of 2. 10 …… Leaf panel, 10A …… Opening, 20 …… Frame, 20A …… Store, 20B …… Guide rail, 30 …… Lid, 40 …… Front shoe, 42 …… Rear shoe, 44 …… No. 1 link member, 46 ... drive shoe, 47 ... lifting guide groove, 50 ... second link member, 50A ... first drive pin, 50B ... second drive pin.

Claims (1)

[Claims] 1. An opening formed in a vehicle body roof, a lid arranged in the opening, a pair of guide rails extending in the front-rear direction of the vehicle on both sides of the opening, and along the guide rail. And a front shoe that rotatably supports the front side of the lid, and one end rotatably linked to the rear side of the lid and the other end of the first shoe to rotate the rear side of the lid up and down. And a link member provided with a second drive pin, and a drive shoe having an elevating guide groove with which the two drive pins provided on the link member engage at the same time and capable of traveling along the guide rail. The vertical guide groove is formed continuously on at least a parallel part parallel to the guide rail and on both front and rear sides of the parallel part, and end points are formed on the same side above the parallel part. Having first and The forward movement of the tilt-up of the drive shoe and a second inclined portion is moved to the first of the rear drive pin tilted down second
And a drive pin thereof is set to be a center of rotation of the link member.