JPH07304336A - Guide rail structure of sun roof device - Google Patents

Abstract

PURPOSE:To prevent a movable rail from rattling due to displacement of a car body when a roof opening is totally closed by a movable roof (panel which opens and closes the roof opening) in a sun roof device in which the movable rail provided with movable roof is provided in such a way that it can move forward and backward freely for a fixed rail fixed on a roof of a vehicle. CONSTITUTION:When a roof opening is totally closed by a movable roof, a rubber projection 57 provided on a movable rail 20 is brought into contact with a slide guide roller 21a provided on a fixed rail 19. Also, at the same time, a rubber projection 52 provided on the fixed rail 19 is brought into contact with a slide guide roller 23a provided on the movable rail 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide rail structure for a sunroof device used in vehicles such as passenger cars.

[0002]

2. Description of the Related Art As a conventional sunroof device, there is a slide targa roof type device as disclosed in Japanese Patent Laid-Open No. 5-22124. In this type,
An opening is formed corresponding to the front seat between the windshield mounting front frame that is fixed to the vehicle body and the fixed roof that is fixed to the rear frame that is fixed to the vehicle behind the front door. A pair of left and right fixed rails are arranged on the lower side, the movable rails are supported by these fixed rails so as to be movable back and forth, and a movable roof that opens and closes the opening by forward and backward movement is provided between the movable rails. The rail is provided with a guide groove, and the movable rail is provided with a group of rollers engaged with the guide groove of the fixed rail.

[0003]

In the above prior art, since the roller group provided over the entire length of the movable rail engages with the fixed rail, when the opening is fully opened, that is, substantially the entire movable roof is inside the fixed roof. The vertical support of the movable roof is relatively stable when it is stored, but when the movable rail moves forward to close the opening, the number of engaged rollers gradually decreases and rattling occurs. It will be easier.

In particular, when the opening is fully closed, the amount of advancement of the movable rail with respect to the fixed rail becomes the maximum span. At this time, if displacement of the vehicle body occurs due to traveling vibration or the like, this causes the front end portion of the movable rail and the vehicle body ( There will be relative fluctuations with the (front frame). Therefore, not only between the movable rail and the vehicle body, but also between the engaging portions of the movable rail and the fixed rail, the joint portion between the movable roof and the vehicle body (the peripheral portion of the opening), and the like, there is looseness in the vertical and horizontal directions. Occur. Therefore, it is not only annoying but also a cause of damage or failure of the sunroof device.

The present invention has been made in view of the above circumstances, and in particular, prevents rattling at each portion when the opening is fully closed by the movable roof, thereby preventing noise and preventing damage or failure. A guide rail structure for a sunroof device is provided.

[0006]

The first concrete means for solving the problems in the present invention is a pair of left and right below the fixed roof 6 provided on the rear side to form an opening 7 in the front. Fixed roof rails 19 are arranged, movable rails 20 are supported on these fixed rails 19 so as to be movable back and forth, and movable roofs 18 are provided between the movable rails 20 to open and close the opening 7 by forward and backward movements. In the guide rail structure, the movable support members 21 and 23 that engage with the counterpart rail are provided at the front part of the fixed rail 19 and / or the rear part of the movable rail 20, and the movable roof 18 moves forward to move the movable roof 18. When the opening 7 is closed, at least the moving support members 21, 23
Alternatively, it is characterized in that the play absorbing means 53, 59, 65 provided on either one of the counterpart rails come into contact with the other.

A second concrete means for solving the problems in the present invention is a fixed rail 1 in addition to the first concrete means.
9, the movable support member 2 provided on the movable rail 20
In the case where the guide groove 24 that enables engagement of 3 is provided so as to open laterally, the backlash absorbing means 53,
A fixed cushioning piece 52 made of an elastic material is provided so as to project from the upper surface or the lower surface in the guide groove 24 of the fixed rail 19 so as to be in contact with the movable support member 23.

A third concrete means for solving the problems in the present invention is, in addition to the first concrete means, a movable rail 2
0, the moving support member 2 provided on the fixed rail 19
In the case where the guide groove 22 that allows 1 to be engaged is provided laterally open, the backlash absorbing means 59,
It is provided with a movable cushioning piece 57 made of an elastic material and protruding from the upper surface or the lower surface in the guide groove 22 of the movable rail 20 so as to be in contact with the movable supporting member 21.

A fourth concrete means for solving the problems in the present invention is the fixed rail 1 in addition to the first concrete means.
9 and / or the movable rail 20, when the guide grooves 22 and 24 capable of engaging the movement supporting members 21 and 23 provided on the counterpart rail are provided laterally open, the movement support is provided. The members 21 and 23 are provided with rotatable rollers 21a and 23a, and the backlash absorbing means 6 is provided.
5 from the side surfaces of the rollers 21a and 23a to the guide grooves 22 and 2
4 is provided with a pressing shoe 64 which is biased laterally so as to be able to come into contact with the bottom of the groove.

The fifth concrete means for solving the problems in the present invention is the fixed rail 1 in addition to the first concrete means.
9 and / or the movable rail 20, when the guide grooves 22 and 24 capable of engaging the movement supporting members 21 and 23 provided on the counterpart rail are provided laterally open, the movement support is provided. The members 21 and 23 are provided with rotatable rollers 21a and 23a, and the backlash absorbing means 5 is provided.
3, 59 are provided with elastic winding bodies 70 which are provided around the rolling surfaces of the rollers 21a and 23a and contact the upper and lower surfaces of the guide grooves 22 and 24 in the grooves.

The sixth concrete means for solving the problems in the present invention is the fixed rail 1 in addition to the first concrete means.
9 and / or the movable rail 20, when the guide grooves 22 and 24 capable of engaging the movement supporting members 21 and 23 provided on the counterpart rail are provided laterally open, the movement support is provided. The members 21 and 23 are provided with rotatable rollers 21a and 23a, and the backlash absorbing means 6 is provided.
5 from the groove bottom portion in the guide groove 22, 24 to the roller 21a,
The elastic protrusions 77 are provided so as to project laterally so as to be in contact with the side surface of the side wall 23a.

[0012]

The movable rail 20 is moved back and forth with respect to the fixed rail 19 by being guided by the movement supporting members 21 and 23 provided at the front portion of the fixed rail 19 and / or the rear portion of the movable rail 20. . When the movable roof 18 closes the opening 7 due to the forward movement of the movable rail 20, at least one of the movable support members 21 and 23 or the counterpart rails (19, 20) corresponding to these is supported. The provided play absorbing means 53, 59, 65 are adapted to contact the other side. Therefore, even when the vehicle body is displaced, the movable rail 20 is prevented from rattling in the vertical direction or the horizontal direction with respect to the fixed rail 19.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. First, the overall configuration of the sunroof device will be outlined. 2 to 9, reference numeral 1 denotes a sunroof device provided on the roof of a two-box three-door hatch bag vehicle having left and right front doors 2 and a rear door, and a front frame 5 for attaching a windshield 4 fixed to a vehicle body 3 and a front door 2 An opening 7 corresponding to the front seats is formed between the fixed roof 6 fixed to the vehicle body 3 on the rear side and the opening 7 reaches the glass of the left and right front doors 2 and is opened thereby. It is continuous with the entrance and exit.

Reference numeral 9 denotes a rear frame which constitutes a rear portion of the vehicle body 3,
It has left and right side pillars 10, a rear pillar 11, a roof frame 13 connected to them, and the like, and a side glass 14 is provided between the side pillar 10 and the rear pillar 11. The roof frame 13 has a substantially rectangular frame shape in plan view with an opening in the center, and the fixed roof 6 is attached via a bracket 15.

Reference numeral 18 denotes a movable roof supported by a rear frame 9 so as to be movable back and forth. From the fully closed position α where the front end abuts the front frame 5 to close the opening 7, the fixed roof 6 has a substantially entire length. And the roof frame 13 are moved to the fully open position β. The movable roof 18 (or the movable rail 2
0) is connected to the front frame 5 at the fully closed position α via a connecting mechanism (not shown).

Fixed rails 19 which are long in the front-rear direction are bolted onto the left and right side portions of the roof frame 13, and the fixed rail 19 has a long movable rail 2 having a gate-shaped cross section.
It is fitted so that 0 is covered. At the front part of the fixed rail 19 and the rear part of the movable rail 20, movable support members 21 and 23 (these are rollers 21a and 23a, respectively, which will be described later) that engage with the counterpart rails are provided, respectively. The movable rail 20 is adapted to support its linear back-and-forth movement without tilting with respect to the rail 19. The lower side surfaces of the movable roof 18 are placed and connected to the left and right movable rails 20 via brackets 27 and cushion materials.

A fixed head lining (not shown) covering the lower surface of the roof frame 13 is fixed, and a movable head lining 28 covering the lower surface of the movable roof 18 is fixed.
Is attached. This movable headlining 28
Both sides of the central lining 28A are connected to the movable rail 20, and one side of the left and right side linings 28B is movable rail 20.
The other side is connected to the movable roof 18, respectively.

A drive shaft 30 is arranged inside the left and right fixed rails 19 on the roof frame 13 in parallel therewith. The drive shaft 30 is formed of a screw shaft, and a slider 32 is screwed into the drive shaft 30. When the drive shaft 30 is rotated, the slider 32 is moved back and forth. The slider 32 is connected to the rear portion of the movable rail 20 via a connecting body 33, and the movable rail 2 is moved by the forward / backward movement of the slider 32.
0 and the movable roof 18 move.

The front ends of the left and right drive shafts 30 are bearings 31 fixed to the roof frame 13, and the rear ends thereof are the gear case 3.
The gear case 34 accommodates a worm gear and a worm wheel, and the drive shaft 30 is connected to the worm wheel.
A motor 35 is fixed to each of the left and right gear cases 34,
The output shaft of the left and right motors 35 is connected to a worm gear and a flexible shaft 36, and the left and right flexible shafts 36 are connected via an emergency means 37 for manual driving, so that the left and right drive shafts 30 are driven at a constant speed. It is set to rotate with.

The drive shaft 30 and the slider 3
2, the gear case 34, the motor 35, and the like constitute a drive mechanism 38 that moves the movable roof 18 forward and backward at high speed and reliably, and the left and right drive shafts 30 can be simultaneously driven at a constant speed by the rotation of the motor 35. The opening / closing operation of the sunroof device 1 is performed by operating the fully open operation switch to operate the drive mechanism 38 from the fully closed position α in FIG. 4 to rotate the drive shaft 30 in the same direction.
2 moves backward, moves the movable rail 20 and the movable roof 18 backward, and opens the opening 7 until the fully open position β shown in FIG. 5 is reached. When the movable rail 20 comes into contact with the stopper at the rear end of the fixed rail 19, the photosensor detects a decrease in the rotation speed of the motor 35 or activates a limit switch to stop the drive mechanism 38.

The closing operation is performed by operating the fully open operation switch.
When the drive mechanism 38 is reversely operated from the fully open position β in FIG. 5, the slider 32 moves forward and the movable rail 20 and the movable roof 1 are moved.
Movable roof 1 until it moves 8 forward and closes opening 7
Move 8 forward. When the movable roof 18 comes into contact with the front frame 5 and the resistance becomes excessive, the photosensor detects it and stops the drive mechanism 38.

Next, the structure of the main part of the present invention will be described in detail. 1 and 9 to 13, the fixed rail 19
The movable rail 20 is formed by extruding an aluminum alloy, for example. The fixed rail 19 is provided with a guide groove 24 that is opened laterally toward both the left and right sides, and the movable support member 23 provided on the rear portion of the movable rail 20 is provided with a plurality of guide grooves 24 that engage with the guide groove 24. It comprises 7 rollers (7 in the drawing). These rollers 23a are rotatably supported by the support pins 43, and their outer diameters are set to be smaller than the vertical gap of the guide groove 24. Then, from the front side (left side in FIG. 1), the first, second, and fifth rollers 23a are in a low position and contact only the lower surface in the guide groove 24, and the third, fourth, sixth, and seventh rollers are arranged. 23
a is a high position and contacts only the upper surface in the guide groove 24,
Each of them rolls instead of sliding. In addition, the support pin 43 has a collar at its base portion and a retaining device 44.
It is fixed by being screwed.

A fixed buffer piece 52 is provided at the front of the fixed rail 19 so as to project upward in the groove via a through hole 50 formed in the lower portion of the guide groove 24. This fixed buffer piece 52 connects the fixed rail 19 to the roof frame 13
When attached to these, they are clamped and held (not shown) between them. This fixed buffer piece 52 is
When the movable rail 20 is formed of an elastic material such as rubber or soft resin, and the movable roof 18 closes the opening 7, the movable rail 20 moves to a low position (first from the front side, It is possible to make contact with the peripheral surface of the roller 23a of 2, 5). That is, when the roller 23a rides on the fixed buffer piece 52, the high position (from the front side to the third,
Since the rollers 23a (4, 6, 7) are pressed against the upper surface in the guide groove 24, the vertical rattling of the movable rail 20 is absorbed. This constitutes the backlash absorbing means 53.

On the other hand, the movable rail 20 has a cross-section gate type covering the fixed rail 19, and guide grooves 22 are formed on both left and right walls of the movable rail 20 so as to open laterally inward. The movable support member 21 provided in the front portion of the fixed rail 19 is provided with a plurality of (7 in the drawing) rollers 21 a that engage with the guide groove 22. These rollers 21a
Is rotatably supported by the support pin 43, and its outer diameter is set smaller than the vertical gap of the guide groove 22. Then, from the front side (the left side in FIG. 1), the first, second, fourth, and fifth rollers 21a are in a high position and contact only the upper surface in the guide groove 22, and the third, sixth, and seventh rollers are arranged. 21a is in a low position and is in contact with only the lower surface in the guide groove 22, so that each of them rolls instead of sliding.

A movable buffer piece 57 is provided at the rear of the movable rail 20 so as to project downward in the groove via a through hole 55 formed in the upper portion of the guide groove 22. Reference numeral 58 is a retainer for the movable cushioning piece 57. This movable buffer piece 57
As for the fixed rail 19 as well, the movable rail 20 is made of an elastic material such as rubber or soft resin, and the movable rail 18 closes the opening 7 when the movable rail 20 moves forward.
At the high position (first, second, fourth, fifth from the front)
It is possible to contact the peripheral surface of 1a. That is, when the roller 21a enters the lower part of the movable cushioning piece 57, the roller 21a in the low position (from the front side to the third, sixth, and seventh) is guided by the guide groove 22.
Since it is pressed against the inner lower surface, rattling in the vertical direction of the movable rail 20 is further absorbed. This constitutes the backlash absorbing means 59.

Position control shoes 25 made of a material having a low coefficient of friction are attached to the left and right sides of the fixed rail 19 by means of mounting pins 45 in the intermediate arrangement portion of the roller 21a group and the intermediate arrangement portion of the movable rail 20 in the roller 23a group. It is attached so as to project toward. The position regulating shoe 25 does not slidably contact the upper and lower surfaces of each of the guide grooves 22 and 24, but slidably contacts only the bottom of each groove. Movable rail 20 against
The left and right position of is regulated.

Further, among the rollers 23a of the movable rail 20, for example, the rollers 23a having the first, second, sixth, and seventh arrangements from the front side, the perforated disk-shaped biasing tool at the tip of the support pin 43. A disc-shaped pressing shoe 64 is provided via 63. The urging member 63 is made of an elastic material such as rubber or soft resin, and the pressing shoe 64 is made of a material having a low friction coefficient such as a resin or a metal material. The urging tool 63 has a guide groove 2
When the roller 23a is engaged with the inside of the roller 4, the thickness of the roller 23a is compressed, and therefore the pressing shoe 64 is urged laterally, so that the pressing shoe 64 comes into appropriate pressing contact with the groove bottom portion in the guide groove 24. Therefore, rattling in the horizontal direction of the movable rail 20 is also absorbed. Thereby, the backlash absorbing means 6
5 are configured.

In order to reduce the longitudinal resistance of the movable rail 20, it is preferable that the pressing shoe 64 and the bottom of the guide groove 24 contact each other only at the front side of the fixed rail 19. Therefore, for example, the depth (horizontal dimension) of the guide groove 24 is set to the pressing shoe 64 on the front side.
It may be formed so as to be shallow enough to come into contact with, and deep so as not to come into contact with other parts.

This backlash absorbing means 65 is provided on the movable rail 20.
It is needless to say that it is possible to provide other arrangements in the above, or to provide all the rollers 23a or to the rollers 21a of the fixed rail 19. By the way, in the present invention, the following various changes are possible. In the backlash absorbing means 53 and 59, the fixed cushioning piece 52 and the movable cushioning piece 57 can be changed to leaf springs, whiskers (linear) springs, or the like that generate an urging force in the vertical direction. Further, although illustration of the fixed buffer piece 52 and the movable buffer piece 57 is omitted,
The chip material made of hard resin or metal may be mechanically urged by an elastic material such as rubber, soft resin, leaf spring, coil spring or the like.

The backlash absorbing means 53 and 59 are not limited to the fixed buffer pieces 52 and the movable buffer pieces 57, but as shown in FIG. 14, the rollers 23a (or 21).
It is also possible to have a structure in which the rolling surface of a) is provided with an elastic winding body 70 that makes contact with the upper and lower surfaces of the guide groove 24 (or 22) in the groove. Needless to say, the elastic winding body 70 is formed of an elastic material such as rubber or soft resin.

In the backlash absorbing means 65, the urging device 6
It is also possible to replace 3 with a coil spring, a wave washer, a split washer, or the like. Further, the backlash absorbing means 65 is not limited to being provided on the roller 23a (or 21a) side, but may be provided on the fixed rail 19 as shown in FIGS. 15 and 16. That is, for example, the set hole 7 that horizontally penetrates between the groove bottom portions of the guide grooves 24 on both sides so as to correspond to the rollers 21a in which the first, second, sixth, and seventh arrangements are made from the front side of the fixed rail 19, for example.
3 is formed, and a cocoon-shaped pad 75 having a central hole 74 penetrating vertically is fitted into these set holes 73. The pad 75 is made of an elastic material such as rubber or soft resin, and when fitted into the set hole 73, the hemispherical portions at both ends project from the groove bottoms of both guide grooves 24. There is. This state is fixed rail 1
A portion which is fixed by a pin 76 which is press-fitted so as to penetrate through the central hole 74 from below 9 and which projects from the groove bottom in the guide groove 24 serves as an elastic projection piece 77.

Therefore, when the movable rail 20 moves forward so that the movable roof 18 closes the opening 7, the elastic protrusions 77 cause the elastic projections 77 to be arranged in the movable rail 20 at predetermined positions.
Since they come into contact with each other and urge them to the outside on both the left and right sides, rattling in the left and right direction of the movable rail 20 is absorbed. The pad 75 has a cocoon shape (both ends have a hemispherical shape) so that the pad 75 can be engaged and disengaged with the roller 23a without difficulty, so that the longitudinal resistance of the movable rail 20 is prevented. Also, damage to the pad 75 itself is prevented.

The backlash absorbing means 65 using such a pad 75 can be provided on the movable rail 20 (however, assuming that the pad 75 has a hemispherical shape only on one end side, this hemispherical end). The parts should be placed facing each other from both walls). In the present invention, the movement support members 21, 2
3 is not limited to using the rollers 21a and 23a, and can be replaced with a shoe having an appropriate shape.

The present invention can be applied even when the movable rail 20 is moved backward with respect to the fixed rail 19 and the movable roof 18 opens the opening 7 fully.

[0035]

According to the present invention described in detail above, at least when the movable roof 18 closes the opening 7 by the forward movement of the movable rail 20, the movable support member 2 is moved.
The backlash absorbing means 53, 59, 65 provided on either one of the rails 1, 23 or the counterpart rail comes into contact with the other rail. Therefore, even when the vehicle body is displaced, the movable rail 20 is prevented from rattling in the vertical direction or the horizontal direction with respect to the fixed rail 19. This prevents annoying noise and prevents damage or failure of the sunroof device.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a combined state of a fixed rail and a movable rail in a fully closed position.

FIG. 2 is an exploded perspective view of the entire sunroof device.

FIG. 3 is a plan view with a roof removed.

FIG. 4 is a schematic side sectional view when the opening is fully closed.

FIG. 5 is a schematic side sectional view when the opening is fully opened.

FIG. 6 is an overall front sectional view.

FIG. 7 is an overall perspective view.

8 is an enlarged cross-sectional view taken along the line SS of FIG.

9 is an enlarged cross-sectional view taken along the line TT of FIG.

FIG. 10 is an exploded perspective view showing a backlash absorbing means provided between a rear portion of a movable rail and a front portion of a fixed rail.

11 is an enlarged cross-sectional view taken along the line WW of FIG.

FIG. 12 is an enlarged cross-sectional view taken along line XX of FIG.

FIG. 13 is an exploded perspective view of the play absorbing means provided on the side surface of the roller.

FIG. 14 is a partially crushed perspective view of the backlash absorbing means provided on the rolling surface of the roller.

FIG. 15 is an exploded perspective view showing a backlash absorbing means in another embodiment provided in the front part of the fixed rail.

16 is an enlarged cross-sectional view taken along the line YY of FIG.

[Explanation of symbols]

 1 sunroof device 6 fixed roof 7 opening 18 movable roof 19 fixed rail 20 movable rail 21 moving support member (fixed rail side) 21a roller 22 guide groove (movable rail side) 23 moving support member (movable rail side) 23a roller 24 guide Groove (fixed rail side) 52 Fixed buffer piece 53 Backlash absorbing means 57 Movable buffer piece 59 Backlash absorbing means 64 Pressing shoe 65 Backlash absorbing means 70 Elastic winding body 77 Elastic projection piece

Claims (6)

[Claims] 1. A pair of left and right fixed rails (19) are arranged at a lower portion of a fixed roof (6) provided on a rear side of the fixed rail (19) so as to form an opening (7) at the front, and these fixed rails (19) are provided. A movable rail (20) is movably supported in the back and forth, and a movable roof (18) for opening and closing the opening (7) by the forward and backward movement is provided between the movable rails (20). At the front part of the fixed rail (19) and / or the rear part of the movable rail (20), movable support members (21) (23) engaging with the counterpart rail are provided, and the movable rail (20) is moved forward. The movable roof (1
8) closes the opening (7), at least, the play absorbing means (53) (5) (5) (5) provided on one of the moving support members (21) (23) or the counterpart rail.
9) A guide rail structure for a sunroof device, in which (65) abuts on the other side. 2. A case where a guide groove (24) for engaging a moving support member (23) provided on a movable rail (20) is provided laterally with respect to a fixed rail (19). The backlash absorbing means (53) is made of an elastic material and is projected from the upper surface or the lower surface in the guide groove (24) of the fixed rail (19) so as to be in contact with the movable support member (23). The guide rail structure for the sunroof device according to claim 1, further comprising a fixed cushioning piece (52). 3. A case in which a guide groove (22) for engaging a movable support member (21) provided on a fixed rail (19) is provided laterally with respect to a movable rail (20). The backlash absorbing means (59) is made of an elastic material and is projected from the upper surface or the lower surface in the guide groove (22) of the movable rail (20) so as to be in contact with the moving support member (21). The guide rail structure for a sunroof device according to claim 1, further comprising a movable cushioning piece (57). 4. A guide groove (2) capable of engaging with a fixed rail (19) and / or a movable rail (20) by a moving support member (21) (23) provided on a counterpart rail.
2) In the case where (24) is provided so as to be opened laterally, the movable support members (21) and (23) are provided with rotatable rollers (21a) and (23a), respectively. 65) is the roller (21a) (23
The pressing shoe (64) is laterally biased so that it can contact the bottom of the guide groove (22) (24) from the side surface of a).
The guide rail structure for a sunroof device according to claim 1, further comprising: 5. A guide groove (2) capable of engaging with a fixed rail (19) and / or a movable rail (20) by a moving support member (21) (23) provided on a counterpart rail.
2) In the case where (24) is provided so as to be opened laterally, the movable support members (21) and (23) are provided with rotatable rollers (21a) and (23a), respectively. 53) and (59) are rollers (21a)
Guide grooves (22) (2) are provided around the rolling surface of (23a).
The guide rail structure for a sunroof device according to claim 1, further comprising an elastic winding body (70) that comes into contact with the upper and lower surfaces of the groove of 4). 6. A guide groove (2) capable of engaging with a fixed rail (19) and / or a movable rail (20) by a moving support member (21) (23) provided on a counterpart rail.
2) In the case where (24) is provided to be opened laterally, the movable support members (21) and (23) are provided with rotatable rollers (21a) and (23a), and the backlash absorbing means ( 65) has guide grooves (22) (2
4) Elastic projection pieces (7) projecting laterally from the bottom of the groove inside so as to be in contact with the side surfaces of the rollers (21a) (23a).
7. The guide rail structure for a sunroof device according to claim 1, further comprising 7).