JP2000085364A - Sun roof panel elevating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sun roof elevating device capable of suppressing looseness and noise without being influenced by the accuracy of support members on the guide groove side and pin side. SOLUTION: A slider 5 movable in the longitudinal direction of a body along a guide rail fixedly provided at a fixed roof is provided with a cam groove 7, and a stay 8 fixedly provided at a sun roof panel is provided with a pin 9 protruded in the cross direction of the body. A collar 12 is interposed between the pin 9 and the cam groove 7. Such a sun roof panel elevating device is provided with a means for regulating the axial displacement of the collar 12 to the cam groove 7 to specify the collar 7 into a specified sliding position by forming the inner peripheral surface of the cam groove 7 and the outer peripheral surface of the collar 12 in complementary irregular cross-sectional shape or the like, and the pin 9 is assembled to the collar 12 so as to be axially displaceable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sunroof panel elevating device having a cam mechanism, and more particularly to a sunroof panel elevating device having a collar interposed between a cam groove and a pin.

[0002]

2. Description of the Related Art In order to open and close a sunroof panel that closes an opening provided in a fixed roof of a vehicle, a sunroof apparatus that can move the sunroof panel up and down and move back and forth has already been put to practical use.

In such a sunroof device, a lower support member slidable in the longitudinal direction of the vehicle along a guide rail fixed to a fixed roof and an upper support member fixed to a sunroof panel. The link mechanism and the cam mechanism are interposed, and the sunroof panel is moved up and down in conjunction with the forward and backward movement of the lower support member caused by the push-pull operation of the push-pull cable.

When the above-described cam mechanism is employed, it is common to provide a cam groove on one of the upper and lower support members and a pin protruding in the vehicle width direction and sliding on the cam groove on the other. However, in the configuration in which the pins are slid directly into the cam grooves, the smooth movement of the sunroof panel cannot be ensured unless the precision of the production and mounting of the cam grooves and pins is improved, so the synthetic resin with low sliding resistance There is a case where a configuration is adopted in which a collar made of a metal is externally provided on a pin, and the pin is slid into the cam groove via the collar.

[0005]

However, even in such a configuration in which the collar is interposed between the cam groove and the pin, if the accuracy of the upper and lower support members in the width direction of the vehicle body is low, the displacement of the pin in the axial direction is reduced. As a result, a part of the collar escapes from the guide groove, whereby the sliding of the collar along the cam groove is not smooth. In particular, when the cam groove is formed by stamping, if there is a draft on the inner peripheral surface of the guide groove, the collar is shifted in the axial direction, so that a large gap is formed between the outer peripheral surface of the collar and the inner peripheral surface of the cam groove. , Noise and noise increase.

[0006] The present invention has been devised to solve such problems of the prior art, and its main objects are as follows.
It is an object of the present invention to provide a sunroof elevating device capable of suppressing the occurrence of play and abnormal noise without being affected by the accuracy of the support members on the guide groove side and the pin side.

[0007]

In order to achieve such an object, in the present invention, in order to open and close a sunroof panel 3 which closes an opening 2 provided in a fixed roof 1 of a vehicle, a fixed roof is provided. A lower support member (slider 5 in the embodiment of the present invention) movable in the vehicle longitudinal direction along a fixed guide rail 4 and an upper support member (in the embodiment of the present invention) fixed to a sunroof panel. 8), a cam groove 7 provided in one of the stays, a pin 9 projecting from the other of the upper and lower support members in the vehicle width direction, and a collar 12 interposed between the pin and the cam groove. In the sunroof panel elevating device having the following, for example, the cross-sectional shape of the inner peripheral surface of the cam groove and the outer peripheral surface of the collar are formed in mutually complementary irregularities, and the displacement of the collar in the axial direction with respect to the cam groove is reduced Together won by providing means for defining a color in a predetermined slide position, the pin is assumed to be assembled to be displaceable axially relative to the collar.

According to this, since the collar does not deviate from the predetermined sliding position with respect to the cam groove, it is possible to avoid a problem that the collar slides along the cam groove not smoothly. On the other hand, errors in the manufacture and mounting in the width direction of the vehicle body are adjusted by an axial displacement between the collar and the pin, but the displacement between the collar and the pin hardly causes rattling. . For this reason, it is possible to suppress occurrence of rattle and noise without being affected by the accuracy of the support members on the guide groove side and the pin side.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 shows a main part of a sunroof device to which the present invention is applied. This sunroof apparatus is an outer slide type in which a sunroof panel 3 for closing an opening 2 of a fixed roof 1 is moved above and behind the fixed roof 1 (to the right in FIG. 1) to release the opening 2. Things.

A pair of guide rails 4 extending in the front-rear direction of the vehicle body are provided on both sides of the opening 2 in the vehicle body width direction (the direction perpendicular to the paper surface of FIG. 1) and fixed to the fixed roof 1. A guide shoe 6 of a slider 5 (lower support member) is slid on the guide rail 4. The slider 5 is formed with a guide groove 7 inclined forward and upward. On the other hand, a pin 9 projects from the lower end of a stay (upper support member) 8 provided on the lower surface side of the sunroof panel 3 in the vehicle width direction, and this pin 8 engages with the guide groove 7 of the slider 5. Have been.

The slider 5 is connected to a push-pull cable (not shown), and is driven to be pushed and pulled by an electric motor or the like. When the slider 5 is displaced rearward as shown by the imaginary line in FIG. 1 by the pull-in operation of the push-pull cable, the guide groove 7 pushes up the pin 9 and the sunroof panel 3 rises. When the slider 5 is further pulled rearward, the stay 8 is pulled rearward with the pin 9 abutting on the end portion of the guide groove 7, whereby the sunroof panel 3 moves rearward and the opening 2 is opened. The reverse operation of the push-pull cable pushes down the sunroof panel 3 and closes the opening 2.

As shown in FIG. 2, the slider 5 is formed by integrally forming a peripheral wall portion 10 having a guide groove 7 therethrough and a leg portion 11 on which the guide shoe 6 is mounted by die casting. The inner peripheral surface of the guide groove 7 is formed in a mountain-shaped cross-sectional shape with a slightly raised central portion in the depth direction (the width direction of the vehicle body) over the entire circumference.

The pin 9 has a columnar shape, and is fitted tightly and axially relative to the inside of a collar 12 having a cylindrical inner surface. Color 12
A cylindrical portion 13 fitted into the guide groove 7 of the slider 5;
Flange portion 1 abutting on side surface of peripheral wall portion 10 of guide groove 7
And 4 are integrally formed of a synthetic resin material such as polyacetal (POM). Both the tubular portion 13 and the flange portion 14 are formed in an oval cross-sectional shape. The outer peripheral surface of the cylindrical portion 13 is formed in a drum shape whose central portion in the axial direction is reduced in diameter corresponding to the inner peripheral surface of the guide groove 7. A taper 15 that facilitates fitting into the guide groove 7 is formed at an end of the cylindrical portion 13 opposite to the flange portion 14.

When the collar 12 is fitted into the guide groove 7, the inner peripheral surface of the guide groove 7 and the outer peripheral surface of the cylindrical portion 13 complementarily engage with each other as shown in FIG. As a result, the collar 12 cannot be displaced in the axial direction. For this reason, when the collar 12 slides along the guide groove 7, there is no need to worry about the collar 12 being displaced, and rattle and abnormal noise can be suppressed. When the slider 5 and the stay 8 are assembled to each other, the end surface 1 of the flange portion 14 of the collar 12 is
A gap of a predetermined size is formed between 4a and the side surface 8a of the stay 8. The width of this gap increases or decreases due to a manufacturing and mounting error on the stay 8 side or the slider 5 side, and is set to an appropriate size according to an expected manufacturing error.

In the present embodiment, the cam groove 7 is provided on the slider 5 as the lower support member and the pin 9 is provided on the stay 8 as the upper support member. However, the opposite configuration is also possible. . Further, the inner peripheral surface of the guide groove 7 is formed to have a chevron-shaped cross-sectional shape and the outer peripheral surface of the collar 12 is shaped like a drum for convenience of die-cutting at the time of manufacturing the slider 5. The present invention is not limited to this, and any method may be used as long as it defines the relative position in the axial direction with respect to the cam groove of the collar so as not to restrict the sliding movement of the collar along the guide groove. For this purpose, the inner peripheral surface of the cam groove and the outer peripheral surface of the collar may be formed so that the cross-sectional shape obtained by cutting the plane including the axis of the collar becomes a mutually complementary uneven shape. In addition to the aspect in which the inner peripheral surface of the above-mentioned and the outer peripheral surface of the collar are closely contacted, various forms are conceivable.

[0017]

As described above, according to the present invention, the displacement of the collar in the axial direction with respect to the cam groove is restrained, so that the sliding of the collar is smooth. The manufacturing and mounting errors are adjusted by the axial displacement between the collar and the pin, so that the accuracy of the support member on the guide groove side and the pin side in the vehicle width direction is not affected. It is possible to suppress the generation of abnormal noise.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a sunroof elevating device according to the present invention.

FIG. 2 is a perspective view showing a slider, a collar, and a pin.

FIG. 3 is a sectional view of an assembled state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixed roof 2 Opening 3 Sunroof panel 4 Guide rail 5 Slider 7 Guide groove 8 Stay 9 Pin 12 Color

Claims (1)

[Claims] 1. A lower support member movable in the longitudinal direction of a vehicle along a guide rail fixed to the fixed roof so as to open and close a sunroof panel closing an opening provided in a fixed roof of the vehicle, and A cam groove provided on one of the upper support members fixed to the sunroof panel, a pin projecting in the width direction of the vehicle body on the other of the upper and lower support members, and between the pin and the cam groove. A sunroof panel lifting / lowering device having an interposed collar, wherein a means for regulating an axial displacement of the collar with respect to the cam groove to define the collar at a predetermined sliding position is provided; A sunroof panel elevating device, wherein the pin is mounted so as to be displaceable in the axial direction.