JPH0455887B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a hood-type sunroof device having a foldable hood.

<Conventional technology> For example, a hood-type sunroof device for a passenger car involves attaching the front and rear ends of a flexible hood to a front cover and a rear cover.
The support body with the front cover mounted thereon is guided by guide rails placed on the left and right sides of the opening in the ceiling roof, and is moved back and forth to extend and fold the top, thereby opening and closing the opening.

In such a sunroof device, when the opening is closed, it is necessary to ensure watertightness between the sunroof and the ceiling, and when the opening is opened, the front cover must not come into sliding contact with the ceiling and the opening/closing resistance will be large.

In order to satisfy this requirement, it is sufficient to tilt the front cover upward at the beginning of opening the top (conversely, the front cover falls forward at the end of closing the top). ).

In this conventional device, the front cover 23 can be tilted via a link mechanism 73 with respect to the support body 24 which is moved back and forth by a drive mechanism, and the front up and down tilting movement of the front cover 23 is independent of the drive mechanism. This is done by a separate manual mechanism.

<Problems to be Solved by the Invention> Such conventional devices require a drive mechanism and a manual mechanism for tilting the front cover up and down;
The structure becomes complicated, and the operation of opening and closing the hood becomes complicated.

<Means for Solving the Problems> In view of the problems of the conventional device, the present invention supports and guides the midway of the support body 24 with a guide rail 10, and provides an auxiliary rail 15 that supports and guides the lower end 24a of the support body 24. A front raising mechanism 37 is provided between this auxiliary rail 15 and the lower end 24a of the support body, and this front raising mechanism 37 tilts the front cover 23 forwardly upward by the driving force from the drive mechanism 51 when the top opens. As a result, the front cover 23 can be moved forward and backward using only the drive mechanism 51, and the front lowering part 40 is provided between the guide rail 10 and the auxiliary rail 15. To provide a hood type sunroof device in which the front cover 23 is lowered forward at the end of opening of the hood, and the front part of the front cover 23 that has been moved backward in the front up state is lowered to prevent wind from being drawn in. The purpose is to

The present invention is characterized in that an opening 2 is formed in the ceiling roof 1, and a front cover 23 is attached to the front end of a flexible canopy 22 that opens and closes this opening 2. A support body 24 provided on the lower surface of the front cover 23 is supported so as to be movable back and forth by guide rails 10 placed on the left and right sides of the opening 2, and a drive mechanism 51 provided on the ceiling roof 1 side supports the support body 24.
In the hood type sunroof device, the support body 24 is formed in the shape of a bell crank, and its middle part is supported by the guide rail 10 behind the front cover 23, and the support body 24 is supported by the guide rail 10 on the ceiling roof 1. An auxiliary rail 15 for guiding the back and forth movement of the lower end 24a of the support body 24 is laid approximately along the
Between the auxiliary rail 15 and the lower end 24a of the support, the support 24 is rotated so as to tilt the front cover 23 upward when the driving force is transmitted from the drive mechanism 51 at the start of opening the top. A forward raising mechanism 37 is provided to maintain the moving posture, and a guide rail is provided between the guide rail 10 and the auxiliary rail 15 to reversely rotate the support body 24 at the end of opening the top and lower the front cover 23 forward. 10 and the auxiliary rail 15 is provided with a front lowering portion 40 formed by enlarging the distance between the rail 10 and the auxiliary rail 15.

<Operation> When the drive mechanism 51 is activated to move the movable body 35 backward via the cable 36, the forward raising mechanism 37 is activated in response to the driving force, and the lower end 2 of the support body 24 is activated.
4a and attach the support 24 to the guide rail 10.
The front cover 23 is rotated about a mid-way pivot 25 which is pivotally supported by the front cover 23, whereby the front cover 23 is tilted and its front end rises from the front part of the roof, so that the entire front cover 23 floats above the ceiling roof 1. The front cover 23 moves backward at the same time as the moving body 35 moves backward or after the front cover 23 rises;
The top 22 is folded and the opening 2 is opened.

The front cover 23 moves backward while the front is tilted upward, but at the end of the opening period of the top, the support body 24 is rotated by the front lowering part 40 in the opposite direction about the midway pivot part 25, and the front cover 23 is tilted upward. The front part has a ceiling roof 1
Lower the front so that it touches the.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

In the first embodiment shown in FIGS. 1 to 4, reference numeral 1 denotes a ceiling roof of a vehicle such as a passenger car, and a hood type sunroof device 3 is attached to open and close a ceiling opening 2 cut out in a rectangular shape.

Reference numeral 4 denotes an upper frame attached to the peripheral edge 1a of the ceiling roof 1, and includes a pair of left and right upper frames 5, and upper front and rear frames 6, 7 connecting both front and rear ends of the left and right upper frames 5.
and a peripheral edge 1a together with a mounting member 8 having an L-shaped cross section.
are bolted together so that they are sandwiched.

The left and right upper frames 5 have an arcuate shape along the upwardly projecting arcuate shape (camber) of the ceiling roof 1, and a guide rail 10 is integrally molded inside thereof.

Reference numeral 11 denotes a lower frame bolted to the mounting material 8, which includes a pair of left and right lower frames 12;
Lower front and rear frame 1 connecting both front ends and both side ends of 2
3, 14, and each frame 12, 13, 14 has a mounting part (E) fixed to the mounting material 8, a rain gutter part (F), and an inner peripheral edge G.
Further, an auxiliary rail 15 and a cable guide 16 are integrally molded on the left and right lower side frames 12.

The auxiliary rail 15 is open to the rain gutter (F) side, and the cable guide 16 is connected to a drive cable groove 16a formed at the back of the auxiliary rail 15.
and an idle cable groove 16b formed on the inner peripheral edge (G) side.

A weather strip 17 is provided on the inner peripheral edges (G) of the left and right lower frames 12 and the lower front and rear frames 13 and 14, forming an indoor opening 18. 19 is an interior board.

The left and right upper frames 5 and the upper and rear frames 6 and 7 of the upper frame 4 can be integrally molded, and the left and right lower frames 12 and the lower and front frames 13 and 14 of the lower frame 11 can be integrally molded. can. In addition, the left and right upper frames 5, the left and right lower frames 12, the upper front and rear frames 6, 7, the lower front and rear frames 13,
14 may be integrally molded.

A flexible hood 22 opens and closes the openings 2 and 18, and its front end is attached to the front cover 23. This front cover 23 is supported by supports 24 attached to the left and right lower surfaces, and these supports 24 are formed in a substantially dogleg shape (bell crank shape) when viewed from the side, and the bent midway portion is attached to the front cover 24. A guide shoe (roller) 26 is provided at the rear of the guide shoe 23 via a pivot shaft 25 protruding outward from this midway portion, and a roller 28 is also provided at the front lower end 24a via a pivot shaft 27.

The guide shoe 26 and the roller 28 are arranged on the left and right sides of the support body 24, respectively, the guide shoe 26 is inserted into the guide rail 10 and guided so as to be slidable back and forth, and the roller 28 is able to roll on the auxiliary rail 15. ing.

Reference numeral 30 denotes a cam body whose front end is pivotally connected to the pivot shaft 27 of the roller 28. A roller 32 is provided at the rear end via a shaft 31, and a cam groove 33 that slopes upward in the front is formed in the middle of the cam body. , the roller 32
is inserted into the auxiliary rail 15 and guided so as to be slidable back and forth.

Another roller 34 is installed on the auxiliary rail 15.
is guided so as to be slidable back and forth, and this roller 3
4 is penetrated by a pin-shaped movable body 35, one end of which is connected to the cable 36, and the other end of which is connected to the cam groove 33.
is penetrated by. This moving body 35 is a cam body 30
It is relatively movable within the range of the cam groove 33, and by relative movement, the cam body 30 can be freely rotated around the shaft 31 so that the front end can be raised and lowered, and the cam body 30 can be freely rotated at both ends of the cam groove The cam body 30 can be driven back and forth by making contact with it.

A notch 38 and a stopper 39 are formed in the front of the auxiliary rail 15, and the roller 28
The forward movement of the vehicle is restricted and the vehicle is lowered. The cam body 30, the movable body 35, the notch 3
8, a stopper 39, and the like constitute a forward lifting mechanism 37, which functions to lower the front cover 23 when it moves forward. In the front raising mechanism 37, the front part of the cam body 30 is pivotally supported by the lower end 24a of the support body 24, and the rear part of the cam body 30 is pivotally supported by a roller 34 guided by the auxiliary rail 15. A cam groove 33 in which a moving body 35 that moves back and forth by a drive mechanism 51 is slidably engaged in the middle part.
The cam groove 33 is inclined rearward and downward so that the front portion of the cam body 30 is raised around the roller 34 by the relative backward movement of the movable body 35.

The auxiliary rail 15 is formed in a straight line, and the distance (H) between it and the upwardly protruding arcuate guide rail 10 increases as it goes halfway from the front end, and this widened portion is the front cover. 23, a front lowering portion 40 is formed. This front lowering part 40 is approximately at the center of the opening 2, but there is a sufficient range in the front and back direction, and by expanding the interval (H), the support body 2
4 is rotated about the pivot 27, and the front part of the front cover 23 is lowered.

The rear end of the canopy 22 is attached to a rear cover 43, and the rear cover 43 has a mounting plate 4 fixed to its lower surface.
4 is fixed to the upper rear frame 7 or the rear part of the roof.

Although not shown, the front cover 23 and the rear cover 4
A flexible lining is stretched between the hood 2 and the hood 2.
2 together form a bag-like roof, and within this bag-like roof, one or more sets of aggregates are provided to assist in lateral tensioning and folding. As shown in FIG. 2, this aggregate consists of a horizontal aggregate 46 having a guide shoe 45 that slides within the guide rail 10, and a plurality of spring plates or pivotally supported strip plates etc. from this horizontal aggregate 46. It has a floating aggregate 48 connected via a connecting member 47, and this floating aggregate 48 guides the folding of the top 22.

Reference numeral 51 denotes a cable drive mechanism, which is provided at the rear lower part of the roof, and is capable of pushing and pulling the two cables 36 by rotating a gear in a gear box 53 by driving a motor 52. The front ends of the drive cables are inserted into the drive cable grooves 16a and connected to the moving band 35, and the respective rear ends are guided through the idle cable grooves 16b.

The cable drive mechanism 51 may be arranged at the front lower part of the roof, or may be of a manual handle type.

A weather strip 54 is provided on the front edge and left and right side edges of the lower surface of the hood 22, and the weather strip 54
This ensures watertightness with the ceiling roof 1 when the roof is closed.

Next, the operation of the device 3 of the first embodiment having the above configuration will be explained.

The front cover 23 shown by the solid line in FIGS. 1 and 2 is in the sealed position (A) where it is in contact with the upper surface of the upper front frame 6 and completely watertight at the frontmost position, and the hood 22
are tensioned to ensure watertightness with the left and right upper frames 5. In this state, the movable body 35 is located at the front end of the cam groove 33 and pushes down the front part of the cam body 30, and the roller 28 hits the stopper 39 and enters the notch 38.

From this state, when the cable drive mechanism 51 is activated to move the movable body 35 backward via the cable 36, the movable body 35 operates the forward raising mechanism 37, and the movable body 35 moves into the cam groove 35 which is tilted rearward downward. The cam body 30 is rotated so as to raise its front portion without moving the cam body 30. As a result, the roller 28 separates from the notch 38, the support body 24 rotates around the pivot 25, the front cover 23 assumes the forward upward tilting position (B) as shown in the imaginary line, and the ceiling roof 1 and the upper frame Leave from 4 upwards. In addition, the front cover 23 is removed from the upper frame 4 in its entirety.
The rear end 23a is located forward of the pivot 25 in the closed position (A).

In this way, when the front cover 23 is detached from the upper frame 4, the movable body 35 is at the rear end of the cam groove 33, and when it moves further rearward, it moves together with the cam body 30, and the support body 24 The roller 28 at the lower front end moves rearward as if guided by the auxiliary rail 15. Since the front cover 23 moves with the front upward tilting posture (B), there is no sliding contact with the upper frame 5.

Moving the moving body 35 further backward, the front cover 2
3 is moved to approximately the middle of the opening 2, the top is at its final stage of opening, and the front lowering portion 40 acts during the backward movement. That is, the guide rail 10 is the auxiliary rail 1
As the distance (H) gradually increases upward from 5, only the guide shoe 26 rises from the forward upward tilting position (B), and the support body 24 rises around the pivot 25.
Therefore, the front cover 23 is in the forward downward position (C). However, the front end of the front cover 23 comes into contact with the upper frame 5 and does not fall below that level.

When closing the top 22, the movable body 35 moves forward while pressing down the cam body 30, the front cover 23 moves in the forward downward position (C), and stops with the roller 28 in contact with the stopper 39. Then, the movable body 35 reversely operates the front ascending mechanism 37 to relatively move forward within the cam groove 33 to push down the cam body 30, the roller 28 enters the notch 38, and the front cover 23 moves into the upper front frame. 5 or pressed against the front of the roof.

FIG. 5 shows a second embodiment of the present invention, in which a front raising mechanism 37 is formed between the auxiliary rail 15 and the lower end 24a of the support 24, and a front lowering part 40' is formed between the auxiliary rail 15' and the guide rail. 10'. Both the guide rail 10' and the auxiliary rail 15' are parallel to the ceiling roof 1. The movable body 35' is formed with a cutout groove 35a that engages with the pivot 27 so as to be able to move up and down relative to it.

A lifting guide portion 55 that slopes forward and downward is formed at the front end of the auxiliary rail 15', and the lower end of the support 2
When the roller 28 of 4a slides on this elevating guide portion 55, the support body 24 moves back and forth while rotating around the intermediate pivot 25. That is, the front cover 23 moves rearward while rotating upward in the front, and moves forward while rotating downward in the front.
a is formed to be long vertically, and the lower end 24 of the support body
It transmits moving power to a and allows relative vertical movement.

The front raising mechanism 37' is connected to the lower end 24 of the support body 24.
a is guided by the auxiliary rail 15, and a lifting guide portion 55 inclined forward and downward is provided at the front of the auxiliary rail 15.
is formed, and a notch groove 35a that engages with the lower end 24a of the support body is formed in the movable body 35' that moves back and forth by the drive mechanism 51.
The lower end 24a of the support body is formed to be vertically elongated so that it can be raised along the elevation guide portion 55 by the backward movement of the support member 5. When the roller 28 moves backward from the lifting guide section 55, the guide rail 10' and the auxiliary rail 1
5' is constant, so the front cover 23 moves rearward while maintaining the front upwardly inclined posture B.

At the position where the front cover 23 is at the final stage of opening the top, a recess 56 forming the front lowering part 40' is located on the auxiliary rail 1.
5', and in this recess 56, the distance (H) from the guide rail 10' is enlarged, the roller 28 descends, and the front cover 23 assumes the forward downward position (C).

Instead of forming the recess 56 in the auxiliary rail 15', the front lowering part 40' may be formed as an upwardly protruding part in the guide rail 10'. It is sufficient to form an enlarged portion in the space between the auxiliary rail 15' and the guide rail 10'.

6 to 10 show five examples of cross-sectional shapes of the upper front frame 6. The upper front frame 6 is formed to abut against the front cover 23 to ensure watertightness when the top is closed, and to prevent wind from entering the room when the top is opened.

The upper front frame 6 of the first example in FIG. 6 is integrally molded with the lower front frame 13, and its upper surface gradually becomes higher toward the rear, and its rear end has a large raised protrusion 57 to direct the wind upward. I am trying to guide you to.

The top surface shape of the upper front frame 6 of Examples 2 to 5 is also the same as that of the first example, but the second example of FIG. 7 is divided into the lower front frame 13, and the third example of FIG. It is bent to have the same shape as the second example, and in the fourth and fifth examples shown in FIG. 9, the vertical mounting part (K) is also formed by bending the sheet metal.

In FIG. 6, a front cover lifting mechanism 60 is also shown. A bracket 6 is attached to the bottom surface of the front cover 23.
1 and a support arm 62 are fixed, the upper end of a swinging arm 63 is pivotally supported on a bracket 61 via a shaft, and a roller-shaped guide shaft is provided at the lower end of this swinging arm 63 and the lower end of the support arm 62, respectively. 64 and 65 are provided.

A guide rail 66 is arranged substantially parallel to the ceiling roof 1, and guides the guide shoes 64, 65 in a slidable manner, and a stopper 67 is fixed to the front end of the guide rail.

A stopper portion 68 is formed on the bracket 61 to restrict the swinging of the swinging arm 63 in one direction, and the swinging arm 63 is urged by a spring 69 in a direction in which it comes into contact with the stopper portion 68.

When the front cover 23 is behind the frontmost position (imaginary line in FIG. 6), the swinging arm 63 contacts the stopper part 68 by the spring 69 and is in a vertical state, and is separated upward from the ceiling roof 1 and the upper frame. This prevents sliding contact even when moving back and forth. When the front cover 23 is moved to the frontmost position, the front cover 23
3 reaches that position, the guide shoe 64 comes into contact with the stopper 67, and the swinging arm 63 swings about the shaft 70 into a forward tilted position. As a result, the front cover 23 moves forward and downward and comes into close contact with the upper front frame 6, ensuring watertightness when the top is closed.

<Effects of the Invention> According to the present invention described in detail above, the support body 24 is formed in a bell crank shape, and its midway portion is supported by the guide rail 10 behind the front cover 23, and the ceiling roof 1 is provided with a guide rail 10. An auxiliary rail 15 is laid approximately along the rail 10 to guide the back and forth movement of the lower end 24a of the support body 24, and a driving force is applied from a drive mechanism 51 between the auxiliary rail 15 and the lower end 24a of the support body when the top opens. A front raising mechanism 3 that rotates the support body 24 to tilt the front cover 23 forward and upward when the transmission is received, and maintains the rotational posture.
7 is provided between the guide rail 10 and the auxiliary rail 15, and the distance between the guide rail 10 and the auxiliary rail 15 is set such that the support body 24 is reversely rotated at the end of the top opening period to move the front cover 23 forward and downward. Since the front lowering portion 40 is formed by enlarging the front cover 23, the front cover 23 is rotated in a forward upward slope when the top starts to be opened using only the driving force of the drive mechanism 51, and the front cover 23 is rotated forward in the rotated position. Move the cover 23 backward,
In addition, the front cover 23 can be reversely rotated forward and downward at the end of opening the top, and when opening the top, the ceiling roof 1
Sliding contact between the flexible top 22 and the flexible top 22 can be avoided, the operability and durability of opening/closing the top 22 can be improved, and wind entrainment can be suppressed when the top is open.

[Brief explanation of the drawing]

1 to 4 show a first embodiment of the present invention, FIG. 1 is a sectional side view showing the structure and operation of the main parts, FIG. 2 is an overall sectional side view, and FIG. 3 is an overall sectional side view. FIG. 4 is a partially sectional plan view, FIG. 4 is a cross-sectional view taken along the - line in FIG. 1, FIG. 5 is a sectional side view showing the second embodiment of the present invention, and FIGS. A cross-sectional side view, FIG. 11 is a cross-sectional explanatory diagram of a conventional device. 1... Ceiling roof, 2... Opening, 3... Canopy type sunroof device, 10... Guide rail, 15...
Auxiliary rail, 16... Cable guide, 22...
Canopy, 23...Front cover, 24...Support, 30...
...cam body, 35... moving body, 37... front raising mechanism, 40... front lowering part, 51... cable drive mechanism.

Claims (1)

[Claims] 1. An opening 2 is formed in the ceiling roof 1, and a front cover 23 is provided at the front end of a flexible canopy 22 that opens and closes the opening 2.
The support body 24 provided on the lower surface of the front cover 23 is supported movably back and forth by the guide rails 10 arranged on the left and right sides of the opening 2, and the ceiling roof 1
In the hood type sunroof device in which the support body 24 can be driven by a drive mechanism 51 provided on the side, the support body 24 is formed in the shape of a bell crank, and the middle part thereof is connected to the guide rail 10 behind the front cover 23. An auxiliary rail 15 is installed on the ceiling roof 1 to guide the back and forth movement of the lower end 24a of the support body 24 approximately along the guide rail 10.
Between the auxiliary rail 15 and the lower end 24a of the support, the support 24 is rotated so as to tilt the front cover 23 upward when the driving force is transmitted from the drive mechanism 51 at the start of opening the top. A forward raising mechanism 37 is provided to maintain the moving posture, and a guide rail is provided between the guide rail 10 and the auxiliary rail 15 to reversely rotate the support body 24 at the end of opening the top and lower the front cover 23 forward. A hood-type sunroof device characterized by being provided with a front lowering portion 40 formed by enlarging the distance between the auxiliary rail 10 and the auxiliary rail 15. 2 The front raising mechanism 37 is located at the lower end 2 of the support body 24.
The front part of the cam body 30 is pivoted to 4a, the rear part of this cam body 30 is pivoted to a roller 34 guided by the auxiliary rail 15, and the cam body 30 is moved back and forth by a drive mechanism 51 in the middle part. A cam groove 33 is formed in which the movable body 35 is slidably engaged.
2. The canopy type sunroom device according to claim 1, wherein the cam body 30 is tilted rearward and downward so that the front portion of the cam body 30 is raised around the roller 34 by the relative backward movement of the movable body 35. 3 The front raising mechanism 37 is connected to the lower end 2 of the support body 24.
4a is guided by an auxiliary rail 15, and at the front of this auxiliary rail 15 there is a lifting guide part 5 inclined forward and downward.
5 is formed, and a notch groove 35a that engages with the lower end 24a of the support body is formed in the movable body 35 that moves back and forth by the drive mechanism 51.
5. The hood-type sunroof device according to claim 1, wherein the lower end 24a of the support body is vertically elongated so that the lower end 24a of the support body can be raised along the elevation guide portion 55 when the support member 5 is moved backward.