JPH0615294B2 - Rear window opening / closing device for automobiles - Google Patents

Description

TECHNICAL FIELD The present invention relates to a device for automatically opening and closing a rear window of an automobile.

[Conventional technology]

A conventional device of this type is, for example, JP-A-62-18.
There is one disclosed in Japanese Patent No. 4920.

In this conventional device, upper and lower sliding members are slidably mounted on the pair of guide rails fixed to both sides of the frame, and two upper and lower sliding members are slidably mounted on the sliding members. Pivoted one
By supporting each side of the window glass with a pair of support links, and by connecting one support link and the lower sliding member with an auxiliary link, the relative movement of both sliding members causes the auxiliary link to move. The support links are tilted up and down to open and close the window glass, and a drive device for moving the sliding members along the guide rails is provided at an appropriate position of the frame.

According to this device, when the lower sliding member is moved upward along the guide rail toward the upper sliding member from the closed state of the window glass by the driving device, the window glass opens, And, when both sliding members are lowered along the guide rails in the opened state, the window glass is lowered to the lower part of the window frame,
Stop at the lowest position.

Further, when the drive device is operated in the opposite manner to the above case, the window glass follows a trajectory opposite to the above case, once rises, and then closes.

[Problems to be solved by the invention]

In the conventional device as described above, in order to open the window glass from the fully closed position to the fully opened position, the lower sliding member is first raised until it comes close to the upper sliding member and then temporarily stopped. , Then, together with the upper sliding member, must pass through the original position and descend to the lower limit position,
Also, in order to close the window glass from the fully open position to the fully closed position, the lower sliding member is first raised with the upper sliding member to the upper limit position, contrary to the above case,
Since it has to be stopped once and then lowered again to the original position independently, the driving device for both sliding members is complicated, its control is complicated, and the operation is not smooth. is there.

It is an object of the present invention to provide a rear window opening / closing device for an automobile that solves such problems.

[Means for solving problems]

In the device of the present invention, upper and lower two sliding members are slidably mounted on each of a pair of guide rails fixed obliquely upward on both sides of the frame, and the upper and lower sliding members are mounted on the lower sliding member.
By pivotally connecting the lower ends of the pair of supporting links, the upper ends of the supporting links can be raised and lowered over a vertical line passing through the pivotal fulcrum of the lower ends, and the upper ends of both supporting links can hold the window glass. While supporting to open and close freely,
One support link and the upper sliding member are connected to each other by the auxiliary link, and the upper sliding member is brought closer to and separated from the lower sliding member, so that both supporting links are connected via the auxiliary link. Tilt over the vertical line,
When the window glass is opened and closed, and the upper sliding member is close to the lower sliding member, both sliding members are lowered and raised together as a unit, so that the window glass is lowered in the open state. Further, the above-mentioned problems are attempted to be solved by providing a driving device that raises the position.

[Work]

According to the vehicle rear window opening / closing device of the present invention, the upper sliding member is independently moved from the upper limit position to the intermediate position close to the lower sliding member by the driving device, and the lower sliding member is lower than that. When the window glass is continuously lowered to the lower limit position together with the above, the window glass is lowered from the fully closed position to the fully opened position in the same posture after being opened.

Further, when the upper sliding member is integrated with the lower sliding member from the lower limit position to the intermediate position and is independently raised above the intermediate position to the upper limit position, the window glass is After rising in the fully open position, it is closed to the fully closed position.

Therefore, the window glass can be opened and closed with only one reciprocation of the upper sliding member, and the opening and closing operation and the elevating operation of the window glass can be continuously and smoothly performed.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

Referring to FIGS. 1 and 2, (1) is a vehicle body of an automobile, and (2) is pivotally attached to an upper portion of a rear end of the vehicle body (1) with a hinge (not shown). It is a so-called hatchback type backdoor in which the part can be opened and closed vertically.

The back door (2) has a trapezoidal window hole (3) formed in the front half which is inclined forward and upward, and has a substantially horizontal rear half.
The frame (5) is provided so as to cover the upper part of the rear trunk room (1) (1).

A window glass (6) constituting a rear window is provided in the window hole (3) of the frame (5) by the opening / closing device (7) shown in detail in FIG. It is openable and closable from the closed position to the fully open position shown in FIGS. 5 and 8 through the intermediate position shown in FIGS. 4 and 7 and vice versa.

As shown in FIG. 3 and subsequent figures, the opening / closing device (7) is provided with a pair of left and right guide rails (8) fixed to the inner surface of the frame (5) on both sides of the window hole (3). There is.

Both guide rails (8) are arranged so as to be inclined forward and upward so as to be parallel to the window frame portion of the frame (5), and to expand downward in the left and right directions in a V-shape. .

The left and right guide rails (8) and the respective members of the opening / closing device (7) attached to them are the centerlines (L) in the front-rear direction of the vehicle body (1).
Regarding (see FIGS. 2 and 6 to 9), they are arranged symmetrically with respect to each other. Therefore, in the following description, only those on the right side will be described, and those on the left side will be described. Is omitted.

The guide rail (8), as shown in FIGS. 12 to 14,
A flat plate-shaped horizontal base piece (8a), a long side piece (8b) hanging from substantially the center of the base piece (8a), and an inner end of the base piece (8a) The side facing toward the center of 1) is called inward and the opposite direction is called outward. The same applies hereinafter.) A short side piece (8
With c), a guide groove (9) having a widened portion (9a) at the upper end and a continuous narrowed portion (9b) is formed at the lower center of the guide groove, and an inward direction is formed at the lower end of the side piece (8c). The protruding piece (8
It has a cross-sectional shape formed by connecting d), and the narrow width part of the guide groove (9).
The base piece (8a) is fixed to the lower surface of the frame (5) so that the opening (9c) of (9b) faces downward.

On the side piece (8b) side surface of the narrow portion (9b) of the guide groove (9),
The substantially circular cable guide grooves (10) (11) for guiding and fitting the geared cables (31) (75), which will be described later, are arranged vertically in two steps and toward the narrow portion (9b) of the guide groove (9). To open
Each is drilled.

Also, on the surface of the narrow portion (9b) of the guide groove (9) on the side piece (8c) side, one similar cable guide groove (12) is opened toward the narrow portion (9b). However, in this embodiment, the cable guide groove (12) has no effect.

In the guide groove (9) of each guide rail (8), two sliding members (13) and (14) are slidably fitted independently of each other.

Each sliding member (13) (14) has a guide groove (9) in the guide rail (8).
It is equipped with horizontal sliding pieces (13a) (14a), one pair each in the front and rear direction, which slidably fits into the widened part (9a) of the
b) and (14b) have a structure that hangs down through the widened portion (9a) of the guide groove (9).

At the lower ends of the front and rear parts of the hanging piece (13b) of the sliding member (13) and the lower end of the center part of the hanging piece (14b) of the sliding member (14), the shaft support piece (13
c) (13d) (14c) are connected in series, and each shaft support (13
c) Inside the (13d) and (14c), mutually parallel bearing cylinders that are orthogonal to the center line (L) of the vehicle body (1) and therefore intersect the guide rail (8) at an angle other than a right angle. (15) (1
6) (17) are fixed so that they penetrate each other.

The shafts (18) (19) (20) are attached to the center line on each bearing bush (15) (16) (17).
They are slidably fitted in a direction orthogonal to (L).

The lower ends of a pair of support links (21) and (22) are pivotally fitted to the inner ends of the shafts (18) and (19), respectively.
The upper end of 2) is located at the center line (L) on the outer surface of the downwardly U-shaped bracket (24) fixed to the lower surface of the glass support plate (23) fixed to the lower surfaces of both side portions of the window glass (6). They are pivotally connected by axes (25) and (26) that are orthogonal to each other.

The support link (21) is slightly shorter than the support link (22),
By supporting the window glass (6) with the support links (21) and (22) having different sizes, the window glass (6) is moved to the fourth position by raising and lowering the support links (21) and (22).
Window glass when opened to the intermediate position shown in the figure
Make sure that the inclination angle of (6) is smaller than the inclination angle when fully closed as shown in FIG. 3, that is, as close as possible to the inclination angle (almost horizontal) of the rear half of the back door (2). is there.

The inner end of the shaft (20) and the inner end of the pin (27) projecting from the inner surface of the intermediate portion of the support link (21) are connected to the ball joints (28) (2
They are connected to each other by an auxiliary link (30) with 9).

Thus, while the sliding member (13) is stopped at the upper limit position shown in FIGS. 3, 4, 6, and 7, the sliding member (14) moves to the positions shown in FIGS. From the upper limit position shown in FIG.
By moving relatively to the intermediate position shown in FIGS. 7 and 8, the auxiliary link (30) is erected, and the upper ends of the support links (21) and (22) are pivoted to the lower end (the shaft (18 ) (19)) is erected over a vertical line and the sliding member (14) moves in the opposite direction to that described above, so that the auxiliary link (30)
Are undulated, and the upper ends of the support links (21, 22) are laid down over the vertical line.

In this way, when the window glass (6) opens and closes,
Since the upper ends of the support links (21) and (22) are tilted over the vertical line passing through the pivot point of the lower end, the direction of the load of the window glass (6) on the auxiliary link (30) can be changed. It reverses on the way, which favorably affects the operation of the upper sliding member (14).

That is, when the window glass (6) begins to open,
The load of the window glass (6) acts on the auxiliary link (30) as a compressive force, and the upper sliding member (14) must move downward to stand up the auxiliary link (30). When the upper ends of the links (21) and (22) cross the vertical line passing through the pivot point of the lower end, the load of the window glass (6) is increased by the auxiliary link (3).
It acts on 0) as a pulling force and promotes the lowering of the upper sliding member (14).

Further, after the upper sliding member (14) comes into contact with the upper end of the lower sliding member (13), the load of the window glass (6) connects the both sliding members (13) and (14) to each other. Because it works like
This is convenient when the both sliding members (13, 14) are subsequently lowered as a unit.

During the movement period of the sliding member (14) from the upper limit position to the intermediate position and in the opposite direction, the shaft (20) has a lock mechanism described later.
Since the action of (61) prevents the bearing cylinder (17) from moving in the left-right direction, the movement of the sliding member (14) along the guide rail (8) assists the shaft (20). The pivotal attachment of the link (30) is displaced laterally relative to the pivotal attachment of the auxiliary link (30) to the pin (27) at the intermediate position of the support link (21).

At this time, the positional displacement of the pivotal joints at both ends of the auxiliary link (30) in the left-right direction is caused by using the pivot joints at both ends of the auxiliary link (30) as ball joints (28) (29) and This is compensated by allowing the auxiliary link (30) itself to slightly tilt in the left-right direction (see FIGS. 6 and 7).

In the cable guide groove (10) of each guide rail (8),
As shown in FIGS. 12 to 14, around the core wire (31a) made of hard steel wire, by winding the spiral winding (31b) of hard steel wire, the spiral winding (31b) A known geared cable (31) adapted to act as a rack is slidably inserted in the axial direction, and the upper end of the geared cable (31) has a mounting bracket (32) shown in FIG. 12. And a set screw (33), and is fixed to the sliding member (14).

The geared cable (31) passes through the guide tube (34) from the lower end of the guide rail (8), and as shown in FIGS. 3 and 15, is substantially horizontal to the frame (5) of the back door (2). It is guided to the cable drive mechanism (35) provided on the lower surface of the rear half.

As clearly shown in FIG. 3 and FIG. 15, the cable drive mechanism (35) has the front and rear portions of the frame (5) so that the middle portion is parallel to the lower surface of the frame (5) with an appropriate interval. )
The support plate (36) fixed to the guide tubes and the guide tubes that guide the geared cable (31) from the lower ends of the left and right guide rails (8).
A mounting bracket (37) for fixing (34) on the support plate (36) so as to be parallel to each other at an appropriate interval in the front and rear, and an axial line cut in the facing portion of the front and rear guide tubes (34). Directional slits (38)
The front and rear parts mesh with the geared cable (31) inserted through the respective guide tubes (34) and are fixedly fitted to the upper end of the rotary shaft (39) penetrating the support plate (36). (40),
In the case (14) fixed to the lower surface of the support plate (36),
A worm wheel (42) fixedly fitted to the lower end of the rotating shaft (39) and rotating in synchronization with the pinion (40), and this worm wheel (4
A worm wheel (43) that is rotatably supported in the case (41) so as to mesh with (2), and is attached to the lower surface of the support plate (36), and the rotation shaft (44a) is the worm (43). A reversible motor (44) connected to the worm (43) to rotate the worm (43) forward and backward.
It has and.

The motor (44) moves the pinion (40) to the 15th position through the worm (43), the worm wheel (42) and the rotary shaft (39).
By rotating in the counterclockwise direction indicated by the solid arrow in the figure, the two geared cables (31) guided by the left and right guide rails (8) are synchronized with each other and the two guide rails (8) are synchronized.
Both geared cables (31) by feeding them into the inside, raising the left and right sliding members (14) in synchronization with each other, and rotating the pinion (40) in the clockwise direction indicated by the dashed arrow in FIG. ) Can be pulled out from the lower ends of both guide rails (8), and the left and right sliding members (14) can be lowered in synchronization with each other.

In addition, either or both of the left and right sliding members (14) are the third
A limit switch (not shown) that operates when the upper limit position shown in the figure and the lower limit position shown in FIG. 5 are reached is provided on the guide rail (8) or other parts,
The actuation of these limit switches preferably controls the actuation of the motor (44) to prevent the sliding member (14) from moving beyond that range.

As shown in FIGS. 9 to 11 and 13, the sliding member (1
On the inner surface of 3), a locking mechanism (4) for locking the sliding member (13) to the guide rail (8) at the upper limit position and stopping it independently.
5) is provided.

The locking mechanism (45) has an intermediate portion pivotally attached to the inner surface of the hanging piece (13b) of the sliding member (13) with a shaft (46), and an upward hook portion formed at the rear lower end ( 48a) is the guide rail
Notch (47) formed in key part of overhanging piece (8d) in (8)
Is engaged with the guide rail (8) to prevent the sliding member (13) from moving along the guide rail (8), and the seesaw-type locking lever (48) is wound around the shaft (46). Stop lever (48)
Of the hook portion (48a) of the locking lever (48) and the spring (49) for urging the hook portion (48a) in the clockwise direction in FIG. 10 which is the direction in which the hook portion (48a) engages with the notch (47). The shaft (50) is pivotally attached to the side surface and can engage with the notch (47) together with the hook part (48a), and when the hook part (48a) comes off the notch (47), the guide rail (8). And a roller (51) capable of rolling along the overhanging piece (8d).

At the front upper end of the locking lever (48), the long axis is the guide rail.
An engagement hole (52), which is a long hole facing the same direction as (8), is formed.

On the sliding member (14) side, when the sliding member (14) descends to the intermediate position shown in FIGS. 4 and 11, the locking state of the locking mechanism (45) is released, and Moving member (14) and sliding member
An unlocking and connecting mechanism (53) for connecting the (13) with each other is provided.

In this mechanism (53), the base (55a) is fixed to the lower end of the hanging piece (14b) of the sliding member (14) with the set screw (54), and the guide rail (8) is fixed from the base (55a). A release plate (55) having a tongue piece (55b) extending rearward and downward along the overhanging piece (8d).
And a connecting pin (56) projecting downward on the front upper part of the tongue piece (55b) of the release plate (55) and capable of being fitted into the engaging hole (52) of the locking lever (48). ing.

According to this mechanism (53), when the sliding member (14) descends to the intermediate position, the tip of the tongue piece (55b) of the release plate (55) and the lower end of the locking lever (48) and the guide rail (8). ) Is wedged in between it and the overhanging piece (8d), and the locking lever (48) is rotated counterclockwise in FIGS. 10 and 11 against the biasing force of the spring (49). Then, when the locking lever (48) is rotated, the engaging hole (52) of the locking lever (48) first leaves the connecting pin (56) above the connecting pin (56) with a slight gap (S). 56), then hook (48a)
Also, the roller (51) is disengaged from the notch (47), and the locked state between the sliding member (13) and the guide rail (8) is released (in FIG. 11, the hook part (48a) is cut off). (Shown at the moment of leaving the notch (47)). Then, the sliding member (13) is engaged with the engaging hole (5
2) The space (S) between the upper edge and the connecting pin (56) is slightly lowered by its own weight, and the connecting pin (56) engages with the upper end of the engaging hole (52) and stops.

At this time, the tip of the tongue piece (55b) of the release plate (55) is positioned relatively above the lower end of the locking lever (48) and the overhanging piece (8d) of the guide rail (8). Therefore, the hook portion (48a) and the roller (51) can be re-engaged with the notch (47),
At this time, since the hook portion (48a) and the like are located slightly below the notch (47) by the amount of the above-mentioned descending due to the weight of the sliding member (13), the hook portion (48a) and the like are notched (47). Will not re-engage.

Engagement hole (52) between connecting pin (56) and locking lever (48) at this time
The sliding members (13) and (14) are connected to each other by the engagement with the sliding member (13) and the sliding member (13) is further lowered from the intermediate position by the drive device (35). Sliding member (14)
It is possible to lower the lower limit position shown in FIG. 5 and FIG.

When the sliding member (14) is lifted from the lower limit position to the intermediate position, first, the hook portion (48a) of the locking lever (48) and the roller (51) are urged by the urging force of the spring (49). Engages with the notch (47), the sliding member (13) is locked to the guide rail (8), and the locking lever (48) at this time rotates clockwise in FIG. By this, the engagement hole (52) is disengaged from the connecting pin (56), the connection between both sliding members (13) and (14) is cut, and thereafter only the sliding member (14) alone rises to the upper limit position. To be made.

During this time, since the tip of the tongue piece (55b) of the release plate (55) is located above the lower end of the locking lever (48) as described above, the locking lever (48) shown in FIG. Rotation in the clockwise direction at is not hindered by the tongue (55b).

As shown in FIG. 9 and FIG. 13, the upper and lower shafts (18) (19) provided on the sliding member (13) side with respect to each bearing tube (15) (16)
Support links (21) (22) at the inner end of each shaft (18) (19) to allow them to slide laterally together
The outer part of the pivotal part of the connecting rod (57) parallel to the center line (L)
A guide rod (59) parallel to the guide rail (8) has outer ends of the shafts (18) and (19) connected to each other by being fixed to respective end parts of the shaft with set screws (58). They are connected to each other by being fixed to the middle portion and the lower end portion of each with a set screw (58).

Also, the sliding member (14) descends to the intermediate position,
After connecting with (13), make sure that the shaft (20) on the sliding member (14) side slides in the left-right direction integrally with the shafts (18) and (19) on the sliding member (13) side. The sliding member (14) on the outer end of the shaft (20).
A concave groove (60) is provided so as to engage with the upper end portion of the guide rod (59) when reaches the intermediate position.

Further, while the sliding member (14) reaches the intermediate position from the upper limit position, the shaft (20) inadvertently slides in the left and right direction, and the groove (60)
Shaft (2) to prevent the guide rod (59) from disengaging.
A lock mechanism (61) for 0) is provided.

As clearly shown in FIG. 12, the locking mechanism (61) has a shaft (2
Guide rail from the outer circumference of the shaft (20) in the middle of (0)
The lock pin (6) provided so as to be retractable toward and away from the (8) side and always biased in the direction of protruding with the compression spring (26).
3), and when the shaft (20) is located at the outermost position thereof, the lock pin (63) protrudes and comes into contact with the outer end surface of the bearing tube (17), so that the shaft ( Inward movement of 20) is blocked. In addition, (64) in FIG.
Is a key for locking the shaft (20).

Reference numeral (65) is a lock release mechanism for releasing the locked state of the lock mechanism (61), which is parallel to the guide rail (8) provided on the outer surface of the hanging piece (14b) of the sliding member (14). A rectangular tube-shaped casing (66), and by being slidably inserted into the casing (66) and protruding from the upper end of the casing (66), the tip of the lock pin (63) is set to the shaft (20 ) The lock release rod (67) having an inclined surface (67a) to be immersed in the lock release rod (67) is connected to the lower end of the lock release rod (67), and is parallel to the guide rail (8) from the lower end of the casing (66). The operating rod (68) protruding downward, and the operating rod (68) and the unlocking rod (67) are contracted between the lower end of the operating rod (68) and the lower end of the casing (66). A compression spring (6
9) consists of

By this unlocking mechanism (65), the sliding member (14) descends to the position immediately before the intermediate position, and the guide rod (5) is inserted into the groove (60) of the shaft (20).
After the upper end of 9) barely engages, the lower end of the actuating rod (68) abuts the protrusion (70) provided on the outer surface of the upper end of the sliding member (13), and the sliding member (14) thereafter. When the rod releasing rod (67) is moved upward with respect to the casing (66) together with the operating rod (68) by descending to the intermediate position of the inclined surface (67
Use a) to immerse the tip of the lock pin (63) in the shaft (20), and unlock the lock mechanism (61).

After that, the sliding member (14) is connected to the sliding member (13) and the unlocked state is maintained while the sliding member (14) descends from the intermediate position to the lower limit position, and the shaft (20 ) Is the axis
(18) Moved inward together with (19), the lock pin (63) enters the bearing tube (17) as shown by the phantom line in FIG.

When the sliding member (14) rises from the lower limit position to the intermediate position, the lock pin (63) is returned to the position shown by the solid line in FIG. 12, but at this time, still, the lock release mechanism (65) is used. Since the unlocked state is maintained, the lock pin
The tip of (63) is kept submerged in the shaft (20), and only when the sliding member (14) rises slightly from the intermediate position, the lock pin (63) protrudes to return to the original locked state. After returning, the lower end of the operating rod (68) separates from the projecting piece (70).

As clearly shown in FIGS. 9 and 14, the auxiliary mechanism (71)
Synchronizes with the lowering of the sliding member (13) from the upper limit position to the lower limit position along the guide rail (8) and the upward movement in the opposite direction, and the shafts (18) (19) (20) are integrated. Is a device for moving inward and outward, and its both ends are fixed to the connecting rod (57) and the guide rod (59), respectively, and the teeth are arranged on the upper edge in parallel with the shafts (18) and (19). The rack plate (72) having the (72a) is engaged with the teeth (72a) of the rack plate (72) so that the sliding member (1
The cable guide of the guide rail (81) at least over the entire length of the movement range of the pinion (74) pivotally supported by the shaft (73) in the middle part of the hanging piece (13b) of (3) and the sliding member (13). Groove (1
1) It fits inside and is fixed to the guide rail (8) by one end or both ends with appropriate stoppers (not shown), thereby acting as a rack integrated with the guide rail (8),
A geared cable (7
5), the pinion (77) pivotally supported by the shaft (76) on the hanging piece (13b) of the sliding member (13) so as to always mesh with the geared cable (75), and the pinion (77). Intermediate gears (78) (79) that appropriately reduce the rotational force of () and transmit it to the pinion (74)
It has and.

From the pinion (77) through the intermediate gear (78) (79) to the pinion (7
The reduction ratio of the gear mechanism up to 4) is the rack plate (72) with respect to the descending distance (X) of the sliding member (13) along the guide rail (8).
Is the lateral movement component of the sliding member (13), Xcos θ (θ
As shown in FIG. 9, is the included angle (acute angle) between the central axis of the guide rail (8) and the central axis of the shaft (19) or the like. ), The value is such that it moves inward, which is the opposite direction of the above-described movement component, with respect to the sliding member (13).

This auxiliary mechanism (71) rotates the pinion (77) by the relative movement of the sliding member (13) and the geared cable (75) while the sliding member (13) descends from the upper limit position to the lower limit position. The rotational force is transmitted to the pinion (74) through the intermediate gears (78) (79), and the rotation of the pinion (74) causes
The rack plate (72) and the shafts (18) (19) (20) are integrally moved with respect to the sliding member (13) in the above-described relationship.

Further, while the sliding member (13) rises from the lower limit position to the upper limit position, the pinions (77) (74) and the intermediate gears (78) (79) are rotated in the opposite direction to the above case, The rack plate (72), the shafts (18), (19), (20), etc. are moved outward with respect to the sliding member (13), contrary to the above case.

As a result, no matter what position the sliding member (13) is from the upper limit position to the lower limit position, the axes (18), (19) and (20) are positioned in the left-right direction with respect to the back door (2). Each axis of the support link (21) (22) and the auxiliary link (30) (which is always maintained constant and thus the left and right guide rails (8) are expanded downward in a V shape) ( It is possible to prevent the pivotally connected portions of 18), (19) and (20) from being displaced in the left-right direction with respect to the back door (2).

In this embodiment, the sliding member (14) is attached to the guide rail by the geared cable (31) and the cable drive mechanism (35).
A driving means (80) for moving along (8) is constituted, and by this, the locking mechanism (45), and the locking releasing and connecting mechanism (53).
A driving means (81) for moving the sliding member (13) along the guide rail (8) is constituted, and the respective sliding members (13) and (14) are moved by both driving means (80) and (81). The drive device (82) is configured.

However, this drive device (82) can move the sliding member (14) independently from the upper limit position to the intermediate position and integrally with the sliding member (13) from the intermediate position to the lower limit position. Any configuration may be used as long as it is.

Next, the overall operation of this embodiment will be described.

When the window glass (6) is located at the fully closed position, both the sliding members (13) and (14) are located at their upper limit positions. At this time, the sliding member (13) is locked to the guide rail (8) by the locking mechanism (45) and is prevented from moving down and up.

From this state, the cable drive mechanism (35) pulls down each geared cable (31) in each guide rail (8) so that the left and right sliding members (14) are synchronized with each other from the upper limit position to the intermediate position. When lowered, both support links (21) and (22) are erected via the auxiliary link (30), and the window glass (6) reaches the intermediate position shown in FIGS. 4 and 7.

Until just before the sliding member (14) reaches the intermediate position, the shaft (20)
The lock mechanism (61) prevents the slide member (14) from moving in the left-right direction at the outermost position.

When the sliding member (14) descends just before the intermediate position, first the shaft
The groove (60) of (20) barely engages with the upper end of the guide rod (59),
Next, the lower end of the operating rod (68) of the lock release mechanism (65) comes into contact with the projecting piece (70) of the sliding member (13) that is stopped, and the locked state by the lock mechanism (61) is released. .

Also, immediately before the sliding member (14) reaches the intermediate position, the release plate
The tongue piece (55b) of (55) wedges between the lower end of the locking lever (48) and the overhanging piece (8d) of the guide rail (8), and the connecting pin (56).
By the engagement of the locking lever (8) with the sliding members (13) (14)
Are connected to each other, the hook portion (48a) of the locking lever (48) and the roller (51) are disengaged from the notch (47), and the sliding member (13) with respect to the guide rail (8) is The locked state is released, and the sliding member (13) can be lowered together with the sliding member (14).

From this state, the geared cables (31) on the left and right guide rails (8) are further pulled down, and the left and right sliding members (14) are synchronized with each other and lowered from the intermediate position to the lower limit position. The member (13) is integrally lowered to the lower limit position while being connected to the sliding member (14).

By the lowering of the sliding member (13), the pinion (77) meshing with the geared cable (75) which is substantially integrated with the guide rail (8) is rotated, and the rotational force thereof is changed. 74).

By the rotation of the pinion (74), the rack plate (72) and the connecting rod (57), the guide rod (59) and the shaft (18) which are integrated with the rack plate (72).
(19), (20), etc., with respect to the sliding member (13) along the guide rail (8) by the same amount as the lateral movement component with respect to the back door (2) for lowering the sliding member (13). Moved inwardly so that they have sliding members (13) (14)
Although it descends obliquely downward along (8), it descends right below the back door (2) in parallel with the center line (L).

As a result, window glass (6), support links (21) (22)
The auxiliary links (30) and the like move in parallel obliquely rearward and downward with respect to the back door (2) while maintaining the intermediate position posture shown in FIGS. 4 and 7, and FIGS. It reaches the fully open position shown in.

When the sliding member (14) reaches the lower limit position, a limit switch (not shown) is activated, the operation of the motor (44) in the cable drive mechanism (35) is stopped, and the window glass (6) is in the fully open position. Will be maintained in the state of.

From this state, when the motor (44) is rotated in the opposite direction to the above case, the sliding members (1
3) (14) is integrally lifted to the upper limit position and the intermediate position, while the auxiliary mechanism (71) moves the shaft (18) (19)
The parts (20) are moved together with each other outwardly with respect to the sliding member (13), and the window glass (6) is lifted to the intermediate position in the same posture.

When the sliding member (14) reaches the intermediate position, the sliding member (13)
The locking mechanism (45) locks the guide rail (8) and releases the connection with the sliding member (13). After that, only the sliding member (14) alone reaches the upper limit position. Can be raised.

Meanwhile, the tongue piece (55b) of the release plate (55) is from the locking lever (48), the operating rod (68) of the unlocking mechanism (65) is from the protruding piece (70), and the shaft (20) is concave. The grooves (60) are sequentially separated from the upper end of the guide rod (59), the shaft (20) is locked to the sliding member (14) at the outermost position by the lock mechanism (61), and the window glass ( 6) is a support link (21) by an auxiliary link (30)
By the tilting rotation of (22), it is returned to the original fully closed position shown in FIGS. 3 and 6.

When the sliding member (14) reaches the upper limit position, a limit switch (not shown) is actuated, the operation of the motor (44) is stopped, and the window glass (6) is maintained in the fully closed position. .

As is clear from the above, in this embodiment, the upper and lower two sliding members (13) and (14) are slid on each of the pair of guide rails (8) fixed to both sides of the frame (5). Upper and lower parts 1 that are movably mounted and have the lower end of the lower sliding member (13) pivotally attached.
The pair of support links (21) and (22) are supported by the upper ends of the window glass (6) so as to be openable and closable, and the one support link (21) and the upper sliding member (14) are connected to each other by an auxiliary link ( 30)
By connecting the support links (21) and (22) to each other via the auxiliary link (30) by connecting the upper slide member (14) to and from the lower slide member (13). The window glass (6) is turned upside down to open and close the window glass (6), and both the sliding members (13) and (14) are mutually connected with the upper sliding member (14) close to the lower sliding member (13). By providing a drive device (82) for lowering and raising the window glass (6) while keeping it open by lowering and raising it as a unit, the following effects can be obtained as effects of the invention. You can

〔The invention's effect〕

According to the present invention, the following effects can be achieved.

(a) When the window glass opens and closes, the upper end of the support link is tilted over the vertical line passing through the pivot point of the lower end, so that the direction of the load of the window glass on the auxiliary link is midway. At which it has a positive effect on the operation of the upper sliding member.

That is, when the window glass starts to open, the load of the window glass acts as a compressive force on the auxiliary link, and the upper sliding member must descend to stand up the auxiliary link. When the upper end crosses the vertical line passing through the pivot point of the lower end, the load of the window glass acts as a tensile force on the auxiliary link, and promotes the lowering of the upper sliding member.

Further, after the upper sliding member comes into contact with the upper end of the lower sliding member, the load of the window glass acts so as to couple the both sliding members to each other, so that the both sliding members thereafter are integrated. It is convenient when lowering.

(b) The operation of opening and lowering the window glass, and vice versa, can be performed only by reciprocating the upper and lower sliding members once, and like the conventional one described above, It is not necessary to reciprocate the sliding member many times.

That is, by lowering the upper sliding member from the upper limit position to the intermediate position to open the window glass, and then lowering the upper sliding member together with the lower sliding member from the intermediate position to the lower limit position, the window glass is opened. The glass can be lowered in the open state, and the window glass can be raised in the open state and then closed by merely raising the sliding members in the opposite direction.

Therefore, the control is easy and the structure of the drive device can be simplified.

(c) Moreover, the operation from the opening of the window glass to the start of lowering it and the operation from the rising to the start of closing it can be continuously and smoothly performed.

[Brief description of drawings]

FIG. 1 is an external perspective view showing an example of an automobile equipped with the device of the present invention, FIG. 2 is a rear view of the back door as seen from the rear, and FIG. 3 is a line AA in FIG. Fig. 4 is a longitudinal side view taken along the line showing the window glass in the fully closed position, Fig. 4 similarly shows the window glass in the intermediate position, and Fig. 5 similarly shows the window glass in the fully open position. FIG. 6 is a plan view of FIG. 3 seen from above, FIG. 7 is a plan view of FIG. 4 seen from above, and FIG. Fig. 5 is a plan view seen from above, Fig. 9 is an enlarged view seen from the line BB of Fig. 3, Fig. 10 is a sectional view taken along the line C-C of Fig. 9, FIG. 11 is a sectional view similar to FIG. 10, showing a state in which the upper sliding member is lowered to the intermediate position from the state shown in FIG. 10, and FIG. 13 is an enlarged sectional view taken along line D-D of FIG. 13, FIG. 13 is an enlarged sectional view taken along line EE of FIG. 9, and FIG. 14 is an enlarged sectional view taken along line F-F of FIG. FIG. 15 is an enlarged sectional view taken along the line GG in FIG. (1) Vehicle body, (2) Back door (3) Window hole, (5) Frame (6) Window glass, (7) Switchgear (8) Guide rail, (9) Guide groove (13) (14) Sliding Member, (18) (19) (20) Shaft (21) (22) Support Link, (30) Auxiliary Link (31) Geared Cable (Cable) (35) Cable Drive Mechanism, (44) Motor (45) Locking Mechanism, (47) Notch (48) Locking lever, (49) Spring (52) Engagement hole, (53) Lock release and connection mechanism (55) Release plate, (56) Connecting pin (59) Guide rod , (60) concave groove (61) lock mechanism, (63) lock pin (65) lock release mechanism, (67) lock release rod (68) operating rod, (71) auxiliary mechanism (72) rack plate, (74) (77) Pinion (75) Geared cable, (80) (81) Drive means (82) Drive device, (L) Center line

Claims (5)

[Claims] 1. A pair of upper and lower sliding members are slidably mounted on each of a pair of guide rails fixed obliquely upward to both side portions of a frame, and a pair of upper and lower supporting members are supported on a lower sliding member. By pivotally attaching the lower end of the link, the upper end of the support link can be raised and lowered over a vertical line passing through the pivot point of the lower end, and the upper ends of both support links can open and close the window glass. While supporting, one support link and the upper sliding member are connected to each other with an auxiliary link, and the upper sliding member is brought close to and away from the lower sliding member, so that an auxiliary link is provided.
By tilting both support links over the vertical line to open and close the window glass, and with the upper sliding member in close proximity to the lower sliding member, both sliding members descend and rise as a unit. A rear window opening / closing device for an automobile, characterized by comprising a drive device for lowering and raising the window glass while keeping it open. 2. A drive device comprising: first drive means for moving the upper sliding member along the guide rail; and second driving means for moving the lower sliding member along the guide rail. A rear window opening / closing device for an automobile according to claim (1). 3. A first drive means is provided slidably in the longitudinal direction of the guide rail, and one end thereof is provided at a proper position of the cable and the frame fixed to the upper slide member, and The rear window opening / closing device for an automobile according to claim (2), which comprises a cable drive mechanism that is linked to the other end of the cable and moves the cable along a guide rail. 4. The rear window opening / closing device for an automobile according to claim 3, wherein the cable drive mechanism is provided on the lower surface of the horizontal rear half of the frame that covers the trunk of the automobile. 5. A second driving means is provided on the lower sliding member, and the lower sliding member is provided with:
At a predetermined upper limit position, when a locking mechanism for locking the guide rail and an upper sliding member, and the upper sliding member descends to an intermediate position close to the lower sliding member. A lock releasing and connecting mechanism for releasing the locked state of the lower sliding member to the guide rail by the locking mechanism and connecting the both sliding members to each other. ) To The rear window opening / closing device for an automobile according to any one of (4) to (4).