JPH079856A - Sunroof device for vehicle - Google Patents

Abstract

PURPOSE:To prevent the internal surface of a guide groove from being deformed due to a load acting on a movable panel by forming the guide groove and a bearing groove on a guide link, and further forming on a lift link a guide pin guided along the guide groove in such a way as freely slidable and a pressure receiving section supported on the bearing groove in such a way as freely slidable in a lengthwise direction. CONSTITUTION:When a rear shoe 53 is caused to slide along a guide groove 59 toward the front of a vehicle, a guide pin 5c is guided by the flexing-down section of the guide groove 59, and a lift link 51 turns so as to stand up relative to a guide rail 3, due to the cam action of the guide groove 59. In this case, a support link 52 moves to tilt up about the center of a pin 57 in agreement to the standing turn of the lift link 51. As a result, a movable panel 6 keeps tilted posture and the opening thereof is kept in open state. At the same time, one external side of a pressure receiving section 51b comes in contact with one internal side of the guide groove 59 over the prescribed area.

Description

Detailed Description of the Invention

[0001]

[Object of the Invention]

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle sunroof device for opening and closing an opening formed in a vehicle roof panel.

[0003]

2. Description of the Related Art Conventionally, as this type of sunroof device, the one disclosed in Japanese Patent Laid-Open No. 64-22621 has been known. This is a guide rail fixed to the roof panel at the side edge of the opening formed in the roof panel of the vehicle and a guide mechanism supported by the guide rail through a link mechanism to open and close the opening. And a movable panel, and the link mechanism includes a guide link slidably supported by the guide rail and a lift link rotatably supported by the movable panel.
In this conventional device, the lift link and the guide link are linked by the guide pin formed in the lift link being slidably guided and supported in the guide groove formed in the guide link. By supporting the guide pin in the guide groove, the movable panel is supported and the opening / closing locus (posture) of the movable panel is regulated.

[0004]

In the above-mentioned conventional apparatus, when a load is applied to the movable panel, the inner peripheral surface of the guide groove comes into contact with the guide pin to transmit the load to the guide rail. Since the inner peripheral surface of the groove makes point contact with the guide pin, stress concentration occurs in the contact portion between the inner peripheral surface of the guide groove and the guide pin, and the inner peripheral surface of the guide groove is easily deformed. As a result, due to the deformation of the guide groove, backlash may occur between the guide pin and the guide groove, and the backlash may cause fluttering or the like on the movable panel.

Therefore, it is a technical object of the present invention to prevent the inner peripheral surface of the guide groove from being deformed by the load applied to the movable panel.

[0006]

[Constitution of the invention]

[0007]

The technical means taken in the present invention to solve the above technical problems include a cam-shaped guide groove formed in a guide link and a support groove formed in the guide link. And a guide pin formed in the lift link and slidably guided in the guide groove, and a pressure receiving portion formed in the lift link and slidably supported in the support groove in a predetermined area in the longitudinal direction. That is.

[0008]

According to the above technical means, when a load is applied to the movable panel, the support groove and the pressure receiving portion are in surface contact with each other to disperse the load. Therefore, stress concentration does not occur between the inner peripheral surface of the guide groove and the guide pin, and as a result, deformation of the inner peripheral surface of the guide groove can be prevented.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, an opening 2 is formed in a roof panel 1 of a vehicle. A pair of guide rails 3 (one shown) are fixed to the roof panel 1 and arranged on both side edges of the opening 2. The pair of guide rails 3 are coupled to a front frame 4 arranged at the front edge of the opening 2 and form a frame body as a whole. A movable panel 6 is supported on the guide rail 3 via a link mechanism 5 described below so as to open and close the opening 2 by the operation of the link mechanism 5.

As shown in FIG. 3, the guide rail 3 extends in the vehicle front-rear direction and has a substantially box-like shape having side walls 3a, 3b and a bottom wall 3c having a width in the vehicle left-right direction. Is. On the bottom wall 3c of the guide rail 3, there is formed a projecting wall 3d extending in the rail longitudinal direction so as to project in the vehicle upward direction in parallel with the side walls 3a and 3b.
The gutter part 3 in which the guide rail 3 is located outside the vehicle by d
1 and a rail portion 32 located inside the vehicle.

Guide walls 32a extending in the rail longitudinal direction are formed on the inner surfaces of the side wall 3a and the protruding wall 3d of the rail portion 32, respectively.
And the guide groove 32b is formed. A cable groove 32c extending in the rail longitudinal direction is formed on the surface of the protruding wall 3d on the inner side of the rail portion 32. On the surface of the side wall 3a on the outer side of the rail portion 32, a pair of flange portions 3 protruding inward of the vehicle.
e and 3f extend in the rail longitudinal direction and are integrally formed, and a sun shade panel (not shown) is slidably supported between the flange portions 3e and 3f. The guide rail 3 configured as described above is integrally formed by extrusion molding using an aluminum material or the like.

As shown in FIGS. 1 to 3, the link mechanism 5 is arranged in the guide portion 32 and has a lift link 51 and a support link 52.
The lift link 51 is provided with a pin 54 at one end thereof on a rear palm 53 which is slidably supported in the guide grooves 32a and 32b.
It is rotatably supported by. In addition, Riashiyu 53
Drive mechanism (not shown) inserted into the cable groove 32c
A foot portion 53a, to which the cable 7 slidably guided in the cable groove 32c is fixed, is formed. The support link 52 is long in the rail longitudinal direction, supports the movable panel 6 through a support bracket 55, and has a front end by a pin 57 on a front shoe 56 slidably supported by the guide groove 32b. It is rotatably supported. The other end of the lift link 51 is rotatably connected by a pin 61. In addition, a check block 58 that is linked to the rear shroud 53 and has a notch 3g formed in the guide rail 3 that can be engaged with and disengaged from the front chute 56 through a relatively slidable insertion of the cam groove 58a and the protrusion 53b.
Is rotatably supported.

As shown in FIGS. 1, 2 and 4, a predetermined space is formed between the other side of the support link 52 and one side surface 52a on the vehicle interior side so as to form a space between the side surface 52a and the one side surface 52a. A guide block 59 is fixed to the. On this guide block 59, the other side surface 59a of the guide block 59 on the outside of the vehicle interior facing the one side surface 52a of the support link 52.
Support groove 59b, first guide groove 59c, and second
Guide grooves 59d are formed respectively. This support groove 59
b, the first guide groove 59c and the second guide groove 59d are deeper than the support groove 59b in the order of the support groove 59b, the first guide groove 59c and the second guide groove 59d from the other side surface 59a, with the other side surface 59a as a reference. Position the first guide groove 59c
The second guide groove 5 at a position deeper than the first guide groove 59c.
9d are arranged respectively. Each of the first guide groove 59c and the second guide groove 59d is long in the longitudinal direction of the support link and has a predetermined cam shape bent in the vehicle vertical direction. The first guide groove 59c and the second guide groove 59d intersect in the longitudinal direction. The support groove 59b has a shape that covers the first and second guide grooves 59c and 59d so that the entire area of the first and second guide grooves 59c and 59d is exposed to the other side surface 59a.

As shown in FIGS. 1 to 4, the other end of the lift link 51 is arranged in the space between the support link 52 and the guide block 59. On one side surface 51a of the vehicle cabin facing the other side surface 59a of the guide block 59 on the other end side of the lift link 51, a pressure receiving portion 51b,
A first guide pin 51c and a second guide pin 51d are formed respectively. The pressure receiving portion 51b is arranged between the first and second guide pins 51c and 51d and the one side surface 51a (at the base of the first and second guide pins 51c and 51d), and
The guide pin 51c and the second guide pin 51d are arranged in parallel in the longitudinal direction of the lift link, and the first guide pin 51c is formed shorter than the second guide pin 51d.

In the above structure, the lift link 51
The pressure receiving portion 51b is slidably fitted in the support groove 59b of the guide block 59, and a part of the outer peripheral surface of the pressure receiving portion 51b has a predetermined area in the longitudinal direction of the pressure receiving portion 59b.
It contacts the inner peripheral surface of b. Incidentally, this contact is made by the pressure receiving portion 51b.
It does not generate a large sliding resistance when sliding on the support groove 59b. Further, the other side surface 51e of the lift link 51 is the protrusion 5 of the one side surface 52a of the support link 52a.
The lift link 51 supports the outside of the vehicle compartment by abutting against 2b. As a result, the movable panel 6 is supported by the rear palm 53 via the support link 52 and the lift link 51. In addition, the first and second guide pins 51 of the lift link 51
c and 51d are slidably inserted and guided in the first and second guide grooves 59c and 59d of the guide block 59, respectively. Thereby, the posture of the movable panel 6 is defined.

In this embodiment, both the first and second guide grooves 59c and 59d are formed on the other side surface 59a of the guide block 59, and the first and second guide pins 51c and 59d are formed.
Although both 51d are formed on one side surface of the lift link 51, one of the first and second guide grooves 59c and 59d is formed on one side surface 52a of the support link 52 and the corresponding first and second guide pins 51c are formed. , 51d may be formed on the other side surface 51e of the lift link 51. In this case, the support groove 59b and the pressure receiving portion 51b are also formed on the one side surface 52a of the support link and the other side surface 51e of the lift link 51, respectively. In addition, in the present embodiment, the lift link 51 is supported on the rear panel 53 and the support link 52 having the guide block 59 is supported on the movable panel 6. However, the support link 52 is disposed on the rear panel 53 and the lift link 51 is mounted on the movable panel 6. It may be supported.

Next, the operation will be described.

FIG. 5 shows the link mechanism 5 in the closed state in which the opening 2 is closed by the movable panel 6 being in the closed posture.
Indicates. At this time, the pressure receiving portion 51b of the lift link 51 is in contact with both side portions of the inner peripheral surface of the support groove 59a of the guide block 59 at a predetermined area on both side portions of the outer peripheral surface thereof.

In the state shown in FIG. 5, when the drive mechanism is actuated to slide the riyasaiyou 53 through the cable 7 along the guide grooves 32a and 32b toward the front of the vehicle,
The first guide pin 51c is guided by the portion of the first guide groove 59c that bends downward in the vehicle. As a result, the lift link 51 is rotated by the cam action of the first guide groove 59c so as to stand upright with respect to the guide rail 3. At this time, the front shoe 56 is made unable to slide due to the engagement of the check block 58 and the notch 3g, and as a result, the support link 52 is shown in FIG. As described above, the tilt-up operation is performed around the pin 57. As a result, the movable panel 6 is tilted, and the opening 2 is opened by the movable panel 6 being tilted. At this time, the pressure receiving portion 51b
Is in contact with one end portion of the inner peripheral surface of the support groove 59a in a predetermined area at one side portion of the outer peripheral surface thereof.

Further, in the state shown in FIG. 5, when the drive mechanism is operated in the opposite manner to the above to slide the rear shroud 53 through the cable 7 along the guide grooves 32a and 32b toward the rear of the vehicle, the second guide The pin 51d is the second guide groove 59.
It is guided by the part of the vehicle d that bends downward. As a result, the lift link 51 causes the second guide groove 59 to move.
It receives the cam action of d and rotates so as to fall down with respect to the guide rail 3. At this time, the front shoe 56 is not slidable due to the engagement of the check block 58 and the notch 3g, and as a result, the support link 52 is shown in FIG. As described above, the slide-down operation is performed around the pin 57. As a result, the movable panel 6 takes a sliding posture. At this time, the pressure receiving portion 51b has the support groove 59a on the other side of the outer peripheral surface thereof.
It contacts with the other end portion of the inner peripheral surface of the above in a predetermined area.
Further, when the support link 52 slides down, the protrusion 53b of the rear hinge 53 is arranged at a portion bending downward of the cam groove 58a of the check block 58, and the engagement between the check block 58 and the notch 3g is released. As a result, the front shoe 56 can be slid. After that, when the Riyashiyu 53 is further slid toward the rear of the vehicle along the guide grooves 32a and 32b, the Riyashiyou 53 and the front shoe 5 are moved.
6 slides rearward of the vehicle along the guide grooves 32a and 32b. As a result, the support link 5 slides while maintaining the sliding posture, and the opening 2 is opened by the sliding motion of the movable panel 6.

The opening 2 is opened by the tilt-up operation of the support link 52, or the opening 2 is closed by the slide-down operation and the sliding operation of the support link 52. In each case, contrary to the above, the Riyashiyu 53 is inserted into the guide grooves 32a, 3
It may be slid along 2b.

As described above, the movable panel 6 is in the closed posture,
When in the tilted or slid position, the lift link 5
Since the outer peripheral surface of the first pressure receiving portion 51b is in contact with the inner peripheral surface of the support groove 59b of the guide block 59 in a predetermined area, when the movable panel 6 is loaded, the support groove 59b and the pressure receiving portion 51b contact each other. The load is transmitted to the guide rails 3 while coming into contact with each other and dispersing the load. Therefore, the first and second guide blocks 59
Stress concentration does not occur between the inner peripheral surfaces of the guide grooves 59c and 59d and the first and second guide pins 51c and 51d of the lift link 51, whereby the first and second guide grooves 59c and
The deformation of the inner peripheral surface of 59d is prevented. As a result, the first and second
There is no backlash between the guide pins 59c, 59d and the first and second guide grooves, and flapping of the movable panel 6 caused by this backlash is also suppressed. Also, the support groove 59b
Since the load is dispersed by the surface contact between the lift link 51 and the pressure receiving portion 51b, it is advantageous in terms of strength.
Also, the guide block 59 can be made of resin. As a result, the weight of the link mechanism 5 can be reduced and the manufacturing cost can be reduced.

[0024]

According to the present invention, when a load is applied to the movable panel, the support groove and the pressure receiving portion come into surface contact with each other to transmit the load to the guide rail while dispersing the load. Therefore, stress concentration does not occur between the inner peripheral surface of the guide groove and the guide pin, whereby the inner peripheral surface of the guide groove can be prevented from being deformed. As a result, backlash does not occur between the guide pin and the guide groove, and flapping of the movable panel caused by this backlash is also suppressed. Further, since the load is dispersed by the surface contact between the support groove and the pressure receiving portion, it becomes advantageous in terms of strength, so that the lift link and the guide link can be made of resin. This makes it possible to reduce the weight of the link mechanism and reduce the manufacturing cost.

[Brief description of drawings]

FIG. 1 is a plan view of a vehicle sunroof device according to the present invention.

FIG. 2 is a vertical sectional view of FIG.

3 is a cross-sectional view of FIG.

FIG. 4 is a perspective view of a main portion of a vehicle sunroof device according to the present invention.

FIG. 5 is an explanatory diagram showing a link mechanism when the movable panel is in a closed posture.

FIG. 6 is an explanatory diagram showing a link mechanism when the movable panel is tilted.

FIG. 7 is an explanatory diagram showing a link mechanism when the movable panel is in a sliding posture.

[Explanation of symbols]

 1 roof panel 2 opening 3 guide rail 5 link mechanism 6 movable panel 51 lift link 52 support link (guide link) 59 guide block (guide link) 51b pressure receiving portion 51c first guide pin (guide pin) 51d second guide pin ( Guide pin) 59b Support groove 59c First guide groove (guide groove) 59d Second guide groove (guide groove)

Claims (1)

[Claims] 1. A guide rail fixed to the roof panel at a side edge of an opening formed in a roof panel of a vehicle, and an operation of the link mechanism supported by the guide rail through a link mechanism. A movable panel that opens and closes the opening by means of a lift link in which the link mechanism is supported on at least one of the guide rail or the movable panel, and at least the other side of the guide rail or the movable panel. In a vehicle sunroof device configured to have a guide link supported by a guide link, a cam-shaped guide groove formed in the guide link, a support groove formed in the guide link, and a lift link formed in the lift link. And a guide pin that is slidably guided in the guide groove, and is formed in the lift link with a predetermined area in the longitudinal direction. A sunroof device for a vehicle having a pressure receiving portion slidably supported in the support groove.