JPH0634540Y2 - Rear window opening / closing device for automobiles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] 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-62-184920.
There is one as disclosed in Japanese Patent Publication.

In this conventional device, two sliding members are slidably mounted on each of a pair of guide rails fixed to both side portions of a frame, and one sliding member is provided so as to be able to move up and down. Support each side of the window glass with the support links of
And one of the support link and the other sliding member,
By connecting with an auxiliary link, the relative movement of both sliding members raises and lowers both of the support links to open and close the window glass, and the sliding members are used as guide rails at appropriate positions of the frame. It is provided with a drive device for moving along.

According to this device, when one of the sliding members is moved relative to the other sliding member along the guide rail 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 rail in the open 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]

However, in the above-described conventional device, the pair of guide rails on both sides are fixed to the frame such that the openings in which the sliding members are slidably fitted face each other. Therefore, when the window glass is open, dust and rainwater easily enter the inside of the guide rail from the outside of the vehicle.Thus, the invasion of these makes the operation unsmooth, rusting, and the resulting deterioration in durability. And so on.

Further, since the openings of both guide rails face each other, it is difficult to assemble the sliding members and the like on them, and assembly workability during manufacturing and disassembly and assembly during repair or inspection are troublesome.

In view of the above problems of the prior art, the present invention has a structure in which dust, rainwater, and the like do not easily enter the inside of the guide rail in the mechanism for moving the rear window glass from the outside of the vehicle, thereby improving the waterproofness and An object of the present invention is to provide a rear window opening / closing device for an automobile, which has improved durability and can be easily assembled from the inside of the vehicle.

[Means for solving problems]

In the device of the present invention, as a concrete means for solving the above problems and problems, two sliding members are slidably mounted on each of a pair of guide rails fixed to both sides of the frame. , Supporting each side part of the window glass with a pair of support links provided on one sliding member so as to be able to move up and down,
And one of the support link and the other sliding member,
By connecting with the auxiliary link, the relative movement of both the sliding members raises and lowers both the support links to open and close the window glass, and the sliding members are placed along the guide rails at appropriate positions of the frame. In a rear window opening / closing device for an automobile, which is provided with a drive device for moving the guide rail, the guide rails are fixed to a frame with an opening in which the sliding members are slidably fitted facing downward. It has a feature.

[Action]

According to the vehicle rear window opening / closing device of the present invention, the drive device relatively moves one sliding member to the other sliding member from the closed state of the window glass, for example, to bring them closer to each other. Then, the support link is erected via the auxiliary link, and the window glass is opened with respect to the frame.

Next, the driving device moves the sliding members along the guide rails in the same direction at the same time, thereby moving the window glass to a predetermined fully opened position.

In order to return the window glass from the fully opened state to the original fully closed state, both sliding members may be moved by the drive device in the opposite manner to the above case. Then, the window glass is returned to the fully closed state by the action opposite to the above case.

Further, in the device of the present invention, since the guide rail is fixed to the frame so that the opening thereof faces downward, when the window glass is open, dust, rainwater, etc. enter from outside the vehicle into the guide rail. It is difficult to do so, the waterproof property and the durability can be improved, and the sliding member and the like can be assembled to the guide rail from the inside of the vehicle, and the assembling workability can be improved.

〔Example〕

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

Referring to FIG. 1 and FIG. 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.

In the back drive (2), a trapezoidal window hole (3) is formed in the front half that is inclined forward and upward, and the back half is almost horizontal.
A frame (5) is provided so as to cover the upper part of the trunk room (4) at the rear of the vehicle body (1).

A window glass (6) constituting a rear window is provided in the window hole (3) of the frame (5) as shown in FIGS. 3 and 6 by an opening / closing device (7) shown in detail from FIG. 3 onward. 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) includes 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 be spread downward in the left and right directions in a V-shape. .

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

As shown in FIGS. 12 to 14, the guide rail (8) includes a flat plate-shaped horizontal base piece (8a) and a long side piece (8b) hanging substantially from the center of the base piece (8a). And a short side piece that hangs from the inner end of the base piece (8a) (when referring to the inside and the outside, the direction facing the center of the vehicle body (1) is called the inside and the opposite direction is the outside. The same applies hereinafter). With (8c), a guide groove (9) having a widened portion (9a) at the upper end and a continuous narrowed portion (9b) formed at the lower center thereof is formed, and at the lower end of the side piece (8c), It has a cross-sectional shape formed by continuously connecting overhanging pieces (8d) horizontally projecting toward one side so that the opening (9c) of the narrow width portion (9b) of the guide groove (9) faces downward. The base piece (8a) is fixed to the lower surface of the frame (5).

On the surface of the narrow portion (9b) of the guide groove (9) on the side piece (8b) side, a substantially circular cable guide groove (10) (for guiding and fitting a geared cable (31) (75) described later ( 11 is,
The holes are formed in upper and lower two stages so as to open toward the narrow width portion (9b) of the guide groove (9).

Also, the side piece (8c) in the narrow portion (9b) of the guide groove (9).
The same cable guide groove (12) is also formed on the side surface so as to open toward the narrow portion (9b).
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, 14) are slidably fitted independently of each other.

Each sliding member (13) (14) has a pair of front and rear horizontal sliding pieces (13a) slidably fitted in the widened portion (9a) of the guide groove (9) of the guide rail (8). (14a), and the hanging pieces (13b) and (14b) hang down from the center thereof through the narrow width portion (9a) of the guide groove (9).

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 central part of the hanging piece (14b) of the sliding member (14) are
The shaft support pieces (13c) (13d) (14c) are arranged in series, and inside the shaft support pieces (13c) (13d) (14c), the center line (L) of the vehicle body (1) is And cross at right angles. Therefore, bearing portions (15), (16) and (17) which are parallel to each other and intersect the guide rail (8) at an angle other than a right angle are fixed so as to penetrate therethrough.

Each bearing bush (15) (16) (17) has a shaft (18) (19) (2
0) are slidably fitted in the direction orthogonal to the center line (L).

At each inner end of the shaft (18) (19), a pair of support links (21)
The lower ends of (22) are pivotally fitted, and the upper ends of the support links (21) (22) are fixed to the lower surfaces of the glass support plates (23) fixed to the lower surfaces of both side portions of the window glass (6). On the outer surface of the bracket (24) that has a downward U shape
Each of them is pivotally connected by an axis (25) (26) orthogonal to the center line (L).

The support link (21) is made slightly shorter than the support link (22), and the support glass (6) is supported by both support links (21) (22) having different sizes,
The tilt angle of the window glass (6) when the window glass (6) is opened to the intermediate position shown in FIG. 4 due to the raising and lowering of both support links (21) and (22) is when fully closed as shown in FIG. The inclination angle is smaller than the inclination angle, that is, the inclination angle of the rear half of the back door (2) (substantially horizontal) is as close as possible.

The inner end of the shaft (20) and the inner end of the pin (27) protruding from the inner surface of the intermediate portion of the support link (21) have an auxiliary link (30) having ball joints (28) (29) at both ends. Connected to each other.

Thus, in the state where 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 Figure 6,
By relatively moving to the intermediate position shown in FIGS. 4 and 7, the support link (21) is erected via the auxiliary link (30), and the window glass (6) is in the fully open position or the intermediate position. Can be moved up to the sliding member (14)
By moving in the opposite direction to the above, the support link (21) is laid down via the auxiliary link (30), and the window glass (6) is moved from the intermediate position to the fully closed position.

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) moves in the left-right direction with respect to the bearing tube (17) by the action of the lock mechanism (61) described later. Since the movement is blocked, the pivotal attachment portion of the auxiliary link (30) to the shaft (20) moves along with the movement of the sliding member (14) along the guide rail (8) to the support link (21). The position of the auxiliary link (30) to the pin (27) at the intermediate position is displaced in the left-right direction relative to the pivotal connection part.

At this time, the positional displacement of the pivotally attached portions at both ends of the auxiliary link (30) in the left-right direction is caused by making the pivotally attached portions at both ends of the auxiliary link (30) into ball joints (28) (29). 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. 9 and 12 to 14, by winding a spiral winding (31b) of hard steel wire around a core wire (31a) made of hard steel wire, A known geared cable (31), in which 31b) acts as a rack, is slidably inserted in the axial direction, and the upper end of the geared cable (31) has a mounting bracket (Fig. 12). It is fastened to the sliding member (14) with a screw (32) and a set screw (33).

The geared cable (31) passes through the guide pipe (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 led to the cable drive mechanism (35) provided on the lower surface of the rear half.

As clearly shown in FIGS. 3 and 15, in the cable drive mechanism (35), the front and rear portions of the cable drive mechanism (35) are parallel to the lower surface of the frame (5) with an appropriate interval. ) And a guide plate (34) that guides the geared cable (31) from the lower ends of the left and right guide rails (8) are parallel to each other with an appropriate space in the front and back. Through the mounting bracket (37) that is fixed on the support plate (36) and the slits (38) in the axial direction that are cut in the opposing portions of the front and rear guide tubes (34). The pinion (40) fixed to the upper end of the rotating shaft (39) which penetrates the support plate (36) while meshing with the geared cable (31) inserted through the pipe (34), and the support plate (36). ) Inside the case (41) fixed to the lower surface of the rotary shaft (39)
A worm wheel (42) fixedly fitted to the lower end of the worm wheel and rotating in synchronization with the pinion (40), and a worm wheel (42) rotatably supported in the case (41) so as to mesh with the worm wheel (42). 43) and a reversible motor (44) which is attached to the lower surface of the support plate (36) and whose rotating shaft (44a) is connected to the worm (43) to rotate the worm (43) forward and backward. ing.

The motor (44) causes the worm (43), the worm wheel (40), and the rotating shaft (39) to drive the pinion (4).
0) is rotated counterclockwise as shown by the solid arrow in FIG. 15, so that the two geared cables (31) guided by the left and right guide rails (8) are synchronized with each other. 8) Send it into the inside and slide the left and right members (14)
And the pinion (40),
Turn both geared cables (31) into both guide rails (8) by rotating them clockwise as shown by the dashed arrows in Fig. 5.
The left and right sliding members (14) can be lowered synchronously with each other by pulling out from the lower end of the.

In addition, a limit switch (not shown) that is activated when either one or both of the left and right sliding members (14) reach the upper limit position shown in FIG. 3 and the lower limit position shown in FIG. 5, respectively, It is provided on the guide rail (8) or other parts, and the operation of these limit switches controls the operation of the motor (44) to prevent the sliding member (14) from moving beyond its range. Good.

As shown in FIG. 9 to FIG. 11 and FIG. 13, on the inner side surface of the sliding member (13), the sliding member (13) is locked to the guide rail (8) at the upper limit position, and is independently supported. A locking mechanism (45) for stopping 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 ( The movement of the sliding member (13) along the guide rail (8) is caused by the engagement of the notch (47) formed in the key portion of the overhanging piece (8d) of the guide rail (8) with the 48a). And a seesaw-type locking lever (48) for blocking the lock lever and the hook lever (48a) wound around the shaft (46).
The spring (49) for urging the notch (47) in the clockwise direction in FIG. 10 and the shaft (50) on the side surface of the hook portion (48a) of the locking lever (48). It can be attached to the notch (47) together with the hook part (48a), and when the hook part (48a) is disengaged from the notch (47), it is attached to the overhanging piece (8d) of the guide rail (8). And a roller (51) that can roll along.

An engaging hole (52), which is a long hole whose major axis faces the same direction as the guide rail (8), is formed in the front upper end portion of the locking lever (48).

On the sliding member (14) side, the sliding member (14) is shown in FIG.
When lowered to the intermediate position shown in FIG. 11, the locking state of the locking mechanism (45) is released and the sliding member (14) is released.
An unlocking and connecting mechanism (53) for connecting the sliding member (13) with the sliding member (13) is provided.

In this mechanism (53), a base portion (55a) is fixed to a lower end portion of a hanging piece (14b) of a sliding member (14) with a set screw (54), and a guide rail (8) is attached from the base portion (55a). Tongue piece (55b) extending downward and rearward along the overhanging piece (8d)
And a tongue piece (55) of the release plate (55).
The locking lever (48) is projected downward from the front upper part of b) and
And a connecting pin (56) that can be fitted into the engaging hole (52).

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). ) Wedged between it and the overhanging piece (8d) to rotate the locking lever (48) counterclockwise in FIGS. 10 and 11 against the biasing force of the spring (49). By the rotation of the locking lever (48), first, the engagement hole (52) of the locking lever (48) leaves the coupling pin (56) above the coupling pin (56) with a slight gap (S). Five
6), then hook (48a) and roller (5
1) is disengaged from the notch (47), and slide member (13)
The engagement between the guide rail (8) and the guide rail (8) is released (FIG. 11 shows the state at the moment when the hook portion (48a) is separated from the notch (47)). Then, the sliding member (13) is slightly lowered by its own weight by the space (S) between the upper edge of the engaging hole (52) and the connecting pin (56), and the connecting pin (56) is moved into the engaging hole. It engages with the upper end of (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) are ready to be re-engaged with the notch (47), but at this time, the hook portion (48a) is reduced by the amount of the downward movement due to the own weight of the sliding member (13). ) Etc. are notches (47)
Since it is located slightly below, the hook portion (48a) and the like do not re-engage with the notch (47).

At this time, both the sliding members (13) and (14) are connected to each other by the engagement of the connecting pin (56) and the engaging hole (52) of the locking lever (48), and the cable drive mechanism (35) When the sliding member (14) is further lowered from the intermediate position, the sliding member (13) is simultaneously lowered together with the sliding member (14), and the lower limit position shown in FIG. 5 and FIG. Can be reached.

When the sliding member (14) is raised 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). Is engaged with the notch (47), the sliding member (13) is locked to the guide rail (8), and the locking lever (48) is rotated clockwise in FIG. 11 at this time. , The engaging hole (52) is disengaged from the connecting pin (56), and both sliding members (1
3) The connection of (14) is broken, and thereafter only the sliding member (14) is raised to the upper limit position by itself.

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. The clockwise rotation of the tongue 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 are the respective bearing cylinders (15) (16).
On the other hand, in order to slide in the left-right direction integrally with each other, the outer portion of the pivotal attachment portion of the support links (21) (22) at the inner end portions of the shafts (18) (19) is Center line (L)
And the outer ends of the shafts (18) and (19) are connected to each other by being fixed to the respective ends of the connecting rods (57) parallel to the guide rails (8) with set screws (58). And a guide rod (59) parallel to and the middle portion and the lower end portion are fixed to each other with a set screw (58), thereby being connected to each other.

Further, the sliding member (14) descends to an intermediate position and is connected to the sliding member (13), and then the shaft (20) on the sliding member (14) side.
The slide member (14) is attached to the outer end of the shaft (20) so that the slide unit slides in the left-right direction integrally with the shafts (18) and (19) on the slide member (13) side. A groove (60) is provided so as to engage with the upper end of the guide rod (59) when the intermediate position is reached.

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) engages with the guide rod (59). A lock mechanism (61) for the shaft (20) is provided in order to prevent it from disappearing.

As clearly shown in FIG. 12, the lock mechanism (61) is provided at the intermediate portion of the shaft (20) so that the lock mechanism (61) can retract from the outer periphery of the shaft (20) toward the guide rail (8) side and the compression spring. (62)
It is equipped with a lock pin (63) that is always biased in the direction of projecting, and when the shaft (20) is at its outermost position, the lock pin (63) projects,
By contacting the outer end surface of the bearing tube (17), the shaft (20)
It is designed to prevent the inward movement of the. In addition,
Reference numeral (64) in FIG. 12 is a key for preventing the shaft (20) from rotating.

Reference numeral (65) is a lock release mechanism for releasing the locked state of the lock mechanism (61), and includes a guide rail (8) provided on the outer surface of the hanging piece (14b) of the sliding member (14). The parallel rectangular tubular casing (66) and this casing (6
6) Unlocking with slanted surface (67a) that allows the tip of the lock pin (63) to be inserted into the shaft (20) by being slidably inserted into the housing and protruding from the upper end of the casing (66). An operating rod (6) which is connected to the rod (67) and the lower end of the unlocking rod (67) and projects downward from the lower end of the casing (66) in parallel with the guide rail (8).
8), the lower end of the working rod (68) and the casing (66)
A compression spring (69) that is contracted between the lower end of the spring and the operating rod (68) and biases the unlocking rod (67) downward.
It consists of

By this lock release mechanism (65), the sliding member (14) descends to the position immediately before the intermediate position, and the upper end of the guide rod (59) barely engages with the groove (60) of the shaft (20). The lower end of the operating rod (68) comes into contact with the projecting piece (70) provided on the outer surface of the upper end of the sliding member (13), and the sliding member (14) is then lowered to the intermediate position, whereby the operating rod (68) 68), the rod release rod (67) is moved upward with respect to the casing (66), and the tip of the lock pin (63) is retracted into the shaft (20) by its inclined surface (67a), and the lock mechanism (67 61) Release the locked state.

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 moved inward together with the shafts (18) and (19), and the lock pin (63) enters the bearing passage (17) as shown by an imaginary 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, the lock release mechanism (65) still works. Since the unlocked state is maintained, the tip of the lock pin (63) is kept immersed in the shaft (20), and only when the sliding member (14) rises slightly from the intermediate position, the lock pin (63 63) projects and returns to the original locked state, after which 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 (7
1) synchronizes with the lowering of the sliding member (13) along the guide rail (8) from the upper limit position to the lower limit position, and ascending in the opposite direction, and the shafts (18) (19) (20) , A device for moving inward and outward as a unit, both ends being fixed to the connecting rod (57) and the guide rod (59), respectively, and being parallel to the shafts (18) (19), Upper limit of teeth (72
The rack plate (72) having a) and the teeth (72a) of the rack plate (72) are engaged with each other, and the shaft (73) is attached to the middle portion of the hanging piece (13b) of the sliding member (13). And the pinion (74) pivotally supported by the sliding member (13) are fitted in the cable guide groove (11) of the guide rail (81) at least over the entire moving range of the sliding member (13), and one or both ends are appropriately fitted. By being fixed to the guide rail (8) with a stopper (not shown), it acts as a rack integrated with the guide rail (8). A geared cable (75) similar to the geared cable (31) and a hanging piece (13) of the sliding member (13) are always engaged with the geared cable (75).
a pinion (77) pivotally supported by a shaft (76) in b),
It is provided with intermediate gears (78) (79) for appropriately decelerating the rotational force of the pinion (77) and transmitting it to the pinion (74).

The reduction ratio of the gear mechanism from the pinion (77) to the pinion (74) via the intermediate gears (78) and (79) is relative to the descending distance (X) of the sliding member (13) along the guide rail (8). Then, the rack plate (72) is Xcos θ (θ is the angle between the central axis of the guide rail (8) and the central axis of the shaft (19) (the acute angle) as shown in FIG. 9. The value is such that it moves inward with respect to the sliding member (13).

By this auxiliary mechanism (71), while the sliding member (13) descends from the upper limit position to the lower limit position, the relative movement between the sliding member (13) and the geared cable (75) causes the pinion (7) to move.
7) is rotated and the rotational force is generated by the intermediate gear (78) (7
It is transmitted to the pinion (74) via 9), and the rotation of the pinion (74) causes the rack plate (72) and the shaft (18).
(19) and (20) are integrally moved with respect to the sliding member (13) in the above-described relationship.

Further, while the sliding member (13) is moving from the lower limit position to the upper limit position, the pinion (77) (74) and the intermediate gear (78)
When the (79) is rotated in the opposite direction to the above case, the rack plate (72), the shafts (18), (19) and (20), etc.
In contrast to 3), contrary to the above case, it is moved outward.

As a result, even if the sliding member (13) is in any position from the upper limit position to the lower limit position, each axis (18) (19) (20)
Is always maintained at a constant position in the left-right direction with respect to the back door (2), so that the support links (21) associated with the left and right guide rails (8) expanding downward in a V-shape. Each axis (18) (19) of (22) and auxiliary link (30)
It is possible to prevent the pivotally connected portion to the (20) from being displaced laterally with respect to the back door (2).

In this embodiment, a drive means (80) for moving the sliding member (14) along the guide rail (8) is constituted by the geared cable (31) and the cable drive mechanism (35). The sliding member (13) is moved to the guide rail (8) by the stop mechanism (45) and the lock release and connection memory (53).
A drive means (81) for moving along with the drive means (81) is constituted, and the drive means (82) for moving the respective sliding members (13, 14) is constituted by the both drive means (80, 81). .

However, this drive device (82) can move the sliding member (14) independently from the vertical 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, the sliding members (13) (14) are sometimes located at their upper limit positions. There is. 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 the sliding member (14) reaches the intermediate position, the shaft (2
0) is the sliding member (1) due to the action of the lock mechanism (61).
4) The lateral movement is blocked at the outermost position.

When the sliding member (14) descends to the position immediately before the intermediate position, first, the groove (60) of the shaft (20) barely engages with the upper end of the guide rod (59), and then the operating rod of the unlocking mechanism (65). The lower end of the (68) 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.

Immediately before the sliding member (14) reaches the intermediate position, the tongue piece (55b) of the release plate (55) causes the lower end portion of the locking lever (48) and the protruding piece (8d) of the guide rail (8). And wedge between
By engaging the connecting pin (56) and the locking lever (8), the sliding members (13) and (14) are connected to each other, and the hook portion (48a) of the locking lever (48) and the roller (48). 51) and 51 are disengaged from the notches (47), and guide rails (8)
The locked state of the sliding member (13) with respect to the sliding member (13) 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 are lowered from the intermediate position to the lower limit position. The member (13) is a sliding member (14).
It will be lowered to the lower limit position as one side while being connected to.

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

By the rotation of the pinion (74), the rack plate (72) and the connecting rod (57), the guide rod (59) and the shafts (18) (19) (20) which are integrated with the rack plate (72) are guided by the guide rail (8). ) Is moved inward with respect to the sliding member (13) by the same amount as the lateral movement amount with respect to the back door (2) when the sliding member (13) descends, and as a result, they are moved. , Sliding members (13)
Although (14) descends obliquely downward along the guide rail (8), it descends straight below the back door (2) in parallel with the center line (L).

As a result, window glass (6), support link (21)
The back door (2) while the (22) and the auxiliary link (30) are maintained in the intermediate positions shown in FIGS. 4 and 7.
With respect to this, the lens moves diagonally rearward and downward to reach the fully open position shown in FIGS. 5 and 8.

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

From this state, when the motor (44) is rotated in the opposite direction to the above case, the sliding members (13) and (14) are integrally operated up to the upper limit position and the intermediate position by the reverse operation of the above case. The shafts (18), (19) and (20) are integrally moved with each other by the auxiliary mechanism (71) and are moved outward with respect to the sliding member (13) by the auxiliary mechanism (71). The 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)
Is locked to the guide rail (8) by the locking mechanism (45), the connection with the sliding member (13) is released, and thereafter, only the sliding member (14) alone has an upper limit. Can be raised to the position.

Meanwhile, the tongue piece (55b) of the release plate (55) is locked by the locking lever (4
8), the operating rod (68) of the lock release mechanism (65) is separated from the projecting piece (70), and the concave groove (60) of the shaft (20) is sequentially separated from the upper end of the guide rod (59). 20) is locked to the sliding member (14) at the outermost position by the lock mechanism (61), and the window glass (6) is fixed to the support links (21) (22) by the auxiliary link (30). By tilting and turning, the original fully closed position shown in FIGS. 3 and 6 is restored.

When the sliding member (14) reaches the upper limit position, a limit switch (not shown) operates, 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 guide rail (8) is formed with the opening (9c) into which the sliding members (13) and (14) are slidably fitted facing downwards. By being fixed to (5), the following effects can be obtained as an effect of the invention.

[Effect of device]

Since the present invention has the above-mentioned configuration and produces the above-mentioned action, when the window glass is opened,
It is difficult for dust, rainwater, and the like to enter the guide rail from the outside of the vehicle, and therefore problems such as smoothing of operation due to such intrusion, generation of rust, and accompanying deterioration of durability can be solved.

Also, since the guide rail opening faces downward, assembly work of sliding members etc. can be done from the inside of the car, and assembly workability during manufacturing and disassembly and assembly workability during repair and inspection are improved. Can be improved.

[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 side, and FIG. 3 is taken along the line AA of FIG. FIG. 4 is a longitudinal side view showing a state in which the window glass is in a fully closed position, FIG. 4 is a diagram showing a state in which the window glass is in an intermediate position, and FIG. 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. 8 is FIG. Fig. 9 is a plan view seen from above, Fig. 9 is an enlarged view seen from line BB in Fig. 3, Fig. 10 is a cross-sectional view taken along line CC in Fig. 9, and Fig. 11 is shown in Fig. 10. A cross-sectional view similar to FIG. 10 showing a state where the upper sliding member is lowered to an intermediate position from the state shown in the drawing, and FIG. 12 is taken along the line DD in FIG. 9. Large sectional view, FIG. 13 is an enlarged sectional view taken along line EE of FIG. 9, FIG. 14 is an enlarged sectional view taken along line FF of FIG. 9, and FIG. 15 is taken along line GG of FIG. FIG. (1) Vehicle body, (2) Back door (3) Window hole, (5) Frame (6) Window glass, (7) Opening / closing device (8) Guide rail, (9) Guide groove (13) (14) Sliding Member, (18) (19) (20) shaft (21) (22) support link, (30) auxiliary link (31) (75) geared cable, (35) cable drive mechanism (44) motor, (45) engagement Stop mechanism (47) Notch, (48) Lock lever (52) Engagement hole, (53) Lock release and connection mechanism (55) Release plate, (56) Connection pin (59) Guide rod, (60) Groove (61) Lock mechanism, (63) Lock pin (65) Lock release mechanism, (67) Lock release rod (68) Actuating rod, (71) Auxiliary mechanism (72) Rack plate, (74) (77) Pinion (80) (81) drive means, (82) drive device (L) center line

Claims (1)

[Scope of utility model registration request] 1. A pair of guide rails fixed to both sides of a frame, each of which has two sliding members slidably mounted thereon, and a pair of sliding members provided on one sliding member so as to be tiltable. By supporting each side portion of the window glass with a supporting link, and connecting one of the supporting links and the other sliding member with an auxiliary link, the relative movement of both sliding members causes the both supporting links to move. In the rear window opening / closing device for an automobile, the drive device is arranged so as to open / close the window glass to open / close the window glass and to move the sliding members along the guide rails at appropriate places in the frame. A rear window opening / closing device for an automobile, characterized in that the rear window opening / closing device is fixed to a frame with an opening in which the respective sliding members are slidably fitted facing downward.