JPH04189995A - Window glass guide structure for automobile door - Google Patents

Abstract

PURPOSE:To smooth the raising/lowering of a window glass by varying the interval between a plurality of guide rails toward the lower edge from the upper edge and forming the guide rail in a twisted shape so as to be in accordance with the angular change in the raising/lowering of the window glass. CONSTITUTION:In the first swing region A, the interval between a front guide rail 6a forming a guide rail 6 for guiding the shift of a window glass 3 and a rear guide rail 3b is gradually reduced downward on the periphery of the upper edge, and in the second swing region B, the above-described interval is gradually increased from the center part to the lower edge part, and the raising/lowering attitude of the glass 3 is changed freely. Engaging members 9 and 10 and the guide rail 6 are always engaged in a prescribed state by twisting the rails 6a and 6b in accordance with the angular variation in the horizontal plane of the engaging members 9 and 10 which varies according to the raising/lowering operation of the glass 3. Accordingly, the window glass raising/lowering operation can be carried out smoothly.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a windshield guide structure for an automobile door, and particularly to one that changes the vertical position of the windshield when the windshield is raised and lowered.

(Prior Art) As shown in Japanese Utility Model Application Publication No. 2-111778, automobile doors have conventionally been provided with a window glass that can be raised and lowered with respect to the door body. Generally, this window glass moves up and down on a predetermined trajectory by being guided by a roller installed at its lower end along a guide rail that extends vertically inside the door body. ing.

One type of this type of window glass is one that can be raised and lowered while rocking in the longitudinal direction of the vehicle body, that is, it has a structure that changes its raising and lowering posture, so that it can be smoothly accommodated inside the door body. is considered.

For example, as shown in FIGS. 6 and 7, a pair of guide rails b, b curved along the vertical curvature of the window glass a are not parallel, but are shaped like a substantially square letter. It is designed to be placed in By arranging the guide rails b and b in this way, when the window glass a is lowered, the guide rail b is moved along with the lowering of the window glass a.

As the horizontal distance between the windows 5 and 5 gradually increases, the window glass a is accommodated in the door body C without rotating (swinging) toward the rear of the vehicle body, as shown by the arrow in FIG. Become. Further, g shown in FIG. 6 is a drive motor for raising and lowering the window glass.

(Problem to be solved by the invention) However, with such a window glass a, it is difficult to smoothly move the roller d up and down within the guide rail b when the window glass a is raised and lowered. Met.

In other words, the windshield a is curved in the vertical direction, and its position in the vehicle width direction is restricted to a position corresponding to the belt line e of the door body C. Therefore, when the windshield a rotates, , as shown in FIG. 8, the rotation axis f of the roller d swings in the longitudinal direction of the vehicle body, and the end surface of the roller d comes into contact with the inner wall of the guide rail b.
In some cases, the rotating shaft f may interfere with the guide rail b.

The present invention has been made in view of this point, and an object of the present invention is to obtain a structure that can smoothly move up and down a window glass whose up and down posture changes.

(Means for Solving the Problems) In order to achieve the above object, the present invention twists the guide rail according to the movement of the engaging member of the window glass. Specifically, the present invention is based on a guide structure that guides the vertical movement of a window glass that is provided on a door body of an automobile so that it can be raised and lowered. Then, the window glass is formed to be curved in the vertical direction. Also, inside the door body,
A plurality of engagement members arranged at a predetermined interval in the front and rear and provided at the lower end of the window glass, and a plurality of guide rails with which the engagement members are respectively movably engaged. There is. Furthermore, by changing the interval between the guide rails from the upper end to the lower end so as to change the vertical position when the windshield is raised and lowered, the horizontal surface of the engaging member is changed as the windshield is raised and lowered. The angle inside can be changed. The guide rail is configured to twist in response to changes in the angle of the engaging member when the window glass is raised and lowered.

(Function) With the above configuration, in the present invention, the interval between the guide rails is changed from the upper end to the lower end, so when the window glass is raised and lowered, its raising and lowering posture changes. Also,
The angle of the engaging member in the horizontal plane changes as the second window glass moves up and down. Therefore, the engaging member is always engaged with the guide rail in a predetermined state, and the windshield can be smoothly raised and lowered.

(Example) Next, embodiments of the present invention will be described based on the drawings.

What is shown in FIG. 1 is a right front door 1 of an automobile. This door] is made up of a door body 2 and a window glass 3 provided on the door body 2 so as to be movable up and down. The door body 2 is composed of a door outer panel 2a and a door inner panel 2b, and a space 2C for accommodating the window glass 3 and its drive system is formed between the two panels 2a and 2b. In addition, the door inner panel 2b
A door hinge 4.4 supported by a front pillar on the vehicle body side (not shown) is attached to the front end surface of the door body 2.
The passenger compartment can be opened and closed freely around this door hinge 4.4. Further, a locking device 5 is provided at the rear end of the door inner panel 2b and can be engaged with a vehicle body side striker (not shown).

Next, the window glass 3, which is a feature of the present invention, will be explained.

First, the guide rail 6 that guides the movement of the windshield 3 consists of a front guide rail 6a and a rear guide rail 6b. Each guide rail 6a, 6b has a second
As shown in FIGS. 4 to 4, both upper and lower ends of the door inner panel 2b are supported, and an opening 6d that opens toward the door outer panel 2a is formed in a guide groove 60 formed inside the door inner panel 2b. has been done. Moreover, each guide rail 6a, 6b is curved according to the vertical curvature of the window glass 3.

The front guide rail 6a is made of a rail material that is substantially linear in side view and is inclined downwardly toward the front of the vehicle body at a predetermined inclination angle in the substantially central portion of the door 1 in the longitudinal direction.

On the other hand, behind the front guide rail 6a, the rear guide rail 6b is inclined downwardly toward the front of the vehicle body at a different angle of inclination than the front guide rail 6a, and is curved in the front-rear direction at a plurality of locations. There is. In other words, this rear guide rail 6b is curved toward the front of the vehicle body around the upper end, slightly curved in the opposite direction (toward the rear of the vehicle body) below it, and further below it is in a straight line and compared to the front guide rail 6a. It is placed in an upright position with a slightly large angle of inclination. Therefore, both guide rails 6a and 6b have a first swing area A whose spacing gradually decreases toward the bottom around the upper end, and a second swing area A whose spacing gradually increases from the center to the lower end. A swing region H is formed.

The wind guard 773 of this example includes a drive motor 7 as its drive source, and is moved up and down by the drive force of the drive motor 7. A guide bracket 8 is attached to a lower end of the central portion of the windshield 30 in the longitudinal direction, corresponding to the position where the front guide rail 6a is disposed. The guide bracket 8 is provided on its inner surface with a front roller 9 serving as an engaging member that is rotatably supported by a rotating shaft 9a.

On the other hand, at the lower end of the rear end in the longitudinal direction of the windshield 3, a rotary shaft 10a is provided at a portion corresponding to the arrangement position of the rear guide rail 6b, and is rotatably supported, similar to the front rail 6a. Similarly, a roller roller 10 as an engaging member is provided diagonally above and behind the front roller 9.

The front roller 9 is fitted into the guide groove 6c of the front guide rail 6a, and the rear roller 10 is fitted into the guide groove 6c of the rear guide rail 6b. By moving the window glass 3 in the vertical direction, the window glass 3 moves up and down while drawing a predetermined trajectory. In other words,
When the windshield 3 is lowered, each roller 9, 10
When passing through the first swing area A, the guide rail spacing gradually becomes smaller, so the window glass 3 swings forward, while when passing through the second swing area B, the guide rail spacing becomes smaller. The windshield 3 is configured to swing rearward as it gradually increases in size.

Next, a drive system for this window glass 3 will be explained. A drive motor 7 is disposed in front of the front guide rail 6a, and the driving force of the drive motor 7 is transmitted to the drum 1. A wire 12 of a predetermined length is wound around the drum 11.
The center portion of the guide bracket 2 in the longitudinal direction is connected to the guide bracket 8. Further, the wire 12 is hung on rollers 13, 13 attached to the door inner panel 2b at the front side close to the upper and lower ends of the front guide rail 6a. Therefore, as the drive motor 7 is driven, the drum 11
The guide bracket 8 is moved up and down as the wire 12 is wound up and fed out, and the window glass 3 is raised and lowered.

A characteristic feature of this example is that each of the guide rails 6a, 6b is twisted in the longitudinal direction of the vehicle body. In other words, as shown in FIGS. 1 and 3, in the first swing area A where the distance between the guide rails 6a and 6b gradually narrows, the opening 6d of the guide groove 6C of each guide rail 6a and 6b is connected to the vehicle body. It is slightly twisted in a direction facing forward. On the other hand, as shown in FIGS. 1 and 4, in the second swing region B where the distance between the guide rails 6a and 6b gradually increases, the opening 6a of the guide groove 6C of each guide rail 6a and 6b is It is slightly twisted in a direction facing backwards.

Next, the lifting and lowering operation of the window glass 3 formed in this manner will be explained.

When lowering the window glass 3 from the fully open state (imaginary line C in FIG. 1), the drive motor 7
is driven to rotate the tram 11 clockwise in FIG. 1, and move the wire 12 in the first direction.

As a result, the guide bracket 8 is moved downward and the window glass 3 is lowered.

With this descent, when each roller 9, 10 passes through the first swing area A, the guide rail 6a.

6b is smaller, the amount of descent of the rear roller 10 is smaller than the amount of descent of the front roller 9, and therefore the windshield 3 does not swing forward as shown by arrow E, but falls. It turns out. When the windshield 3 swings in this way, the windshield 3
In the fully open state, the rotation shafts 9a and 10a, which were tilted downward toward the door inner panel 2b, tilt toward the door inner panel 2b as the window glass 3 moves, as shown in FIG. The vehicle will lean slightly to the rear.

On the other hand, as described above, in this first swing area A, the openings 6d of each guide rail 6a, 6b are slightly twisted in the direction facing the front of the vehicle body. , the extension direction of the rotation shafts 9a and 10a, and the guide rail 6a.

The opening 6d of the opening 6b is perpendicular to the opening plane where the opening 6d is formed. Therefore, the circumferential surface of each roller 9, 10 or the guide groove 6C
A predetermined guiding operation is performed by coming into contact with the guiding surface of.

Then, the windshield continues to descend, and each roller 9, 1
0 is passing through the second swing region B, since the distance between the guide rails 6a and 6b is large, the amount of descent of the rear roller 10 is greater than the amount of descent of the front roller 9, and therefore, The windshield 3 descends while rocking rearward as shown by arrow F. When the windshield 3 swings in this manner, the rotation shafts 9a and 10a of the rollers 9 and 10 are tilted slightly forward of the vehicle body toward the door inner panel 2b, as shown in FIG. Become. On the other hand, as mentioned above, this second
In the swing area B, the openings 6d of each guide rail 6a, 6b are oriented toward the rear of the vehicle body.
6b is slightly twisted, the extension direction of the rotation shafts 9a, 10a and the opening surface forming the opening 6d of the guide rails 6a, 6b are perpendicular to each other in this case as well, so that the predetermined guide movement can be performed. will be held.

Therefore, according to the configuration of this example, the rotating shafts 9a, 10 of the rollers 9, 10 change as the windshield 3 changes in its vertical position.
Since the guide rail 6 is twisted in response to the angle change in the front-rear direction of a, the end surfaces of each roller 9, 10 may come into contact with the inner wall of the guide rail 6, or the rotating shafts 9a, 10a or the guide rail A predetermined guiding operation can be performed without interfering with the guide member 6.

Furthermore, as a modification of this example, it may be applied to the rear door 21, as shown in FIG.

In the rear door 21 shown in FIG. 5, the front guide rail 26a is bent in a substantially U-shape, and the movement locus of the window glass 23 when going up and down is as shown by the imaginary line in FIG. - After swinging backward (arrow G), it begins to swing forward (arrow H). Therefore, the guide rail 26
a, 26b, in the first swing region A' where the distance between the guide rails 26a, 26b gradually narrows, the opening of the guide groove of each guide rail 26a, 26b is slightly twisted in the direction toward the rear of the vehicle body. There is. On the other hand, both guide rails 26a
, 26b, the openings of the guide grooves of each guide rail 26a, 26b are twisted slightly in the direction toward the front of the vehicle body.

In the above embodiment, one of the front guide rail 6a and the rear guide rail 6b is curved or bent, but the present invention is not limited to this. It may be curved or bent in response to a request for a change in the vertical position of the windshield 3. Furthermore, in this example, the guide rail 6 is configured to twist forward and backward in response to changes in the angles of the rollers 9 and 10; however, the present invention is not limited to this; Roller 9 extending from the upper end position to the lower end position
, 10, the guide rail 6 may be configured to have a uniform twist angle from the upper end to the lower end. Furthermore, the engaging member on the side of the windshield 3 is not limited to the rollers 9 and 10, but may be constructed of a slider or the like that is fitted into the guide rail.

(Effects of the Invention) As described above, according to the present invention, when the windshield is raised and lowered, its raising and lowering posture can be freely changed.
In addition, since the guide rail is twisted in response to the change in angle of the engaging member in the horizontal plane as the windshield moves up and down, the engaging member is always engaged with the guide rail in a predetermined state. This makes it possible to smoothly raise and lower the windshield.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention, in which FIG. 1 is a partially cutaway side view of the front door seen from inside the vehicle, FIG. 2 is a vertical rear view of the area around the front door, and FIG. FIG. 4 is a diagram showing the engagement state between the guide rail and the roller in the first swing area, FIG. 4 is a diagram showing the engagement state between the guide rail and the roller in the second swing area, and FIG. This is a diagram equivalent to Figure 1. Figures 6 to 8 show the conventional example, Figure 6 is a perspective view showing the internal structure of the door, Figure 7 is a diagram for explaining the lowering operation of the window glass, and Figure 8 is the guide rail and rollers. FIG. 1.21... Door 1a... Door body 3.23... Windshield 6.26... Guide rail 9... Front roller (engaging member) ]0... Rear roller (engaging member) )

Claims (1)

[Claims] (1) A guide structure that guides the vertical movement of a window glass that is provided on a door body of an automobile so that it can be raised and lowered, the window glass being curved in the vertical direction, and spaced at a predetermined distance from front to back inside the door body. The guide rail includes a plurality of engaging members provided at the lower end of the window glass and a plurality of guide rails with which the engaging members are respectively movably engaged. , the interval is changed from the upper end to the lower end so as to change the vertical posture when the window glass is raised and lowered, and the angle of the engaging member in the horizontal plane is changed as the window glass is raised and lowered. A window glass guide structure for an automobile door, wherein the guide rail is twisted to correspond to a change in angle of an engaging member when the window glass is raised and lowered.