JP3346791B2 - Lid lifting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid elevating device for a vehicle or the like having a trunk lid capable of moving up and down and capable of storing a movable roof.

[0002]

2. Description of the Related Art In Japanese Patent Application Laid-Open No. 3-79429,
The trunk lid that opens and closes the trunk room is provided with a roof slide device that engages with the rear end of the movable roof and slides the movable roof in the front-rear direction, and a roof storage portion that can store the movable roof. 2. Description of the Related Art A vehicle equipped with a trunk lid elevating device for elevating and lowering while maintaining a state is known. In this vehicle, the movable roof is engaged and supported by a slider that has been advanced in the raised trunk lid, the movable roof is slid rearward and housed in the trunk lid, and the trunk lid is lowered to close the trunk room.

[0003]

In order to reduce the operating load (driving force) for raising and lowering such a trunk lid while maintaining a substantially horizontal state, the cylinder lid has been widely used for a rear gate of a wagon car or the like. It is conceivable to use an open stay in which a rod is slidably incorporated and an elastic force is applied in a direction in which both ends are separated from each other along the axial direction. However, if such an open stay is used vertically, the repulsion of the open stay increases linearly with the lowering of the trunk lid, and when the trunk room is closed, the repulsion becomes maximum and exceeds this An operation load (driving force) is required, and it becomes difficult to set a load in the closing direction.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a lid lifting / lowering device capable of reducing an upward repulsive force when the lid is lowered while using an open stay, and obtaining a lateral rigidity with respect to the lid. It is in.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention uses an open stay which applies elastic force in a direction in which both ends are separated from each other along an axial direction. Is connected to the vehicle body side, and the other end is connected to the lid side to urge the lid in the upward direction.
Are slidably assembled so that both ends are
The two open stays are used in a direction away from each other, and the two open stays are crossed with each other and arranged in a cross shape.
Connected to the lid side via ball joints
And wherein a call.

[0006]

[Function] Since the two open stays that urge the lid in the ascending direction are arranged in a cross shape so as to cross each other, the axial repulsion of the open stays in the upper direction and in the lateral direction is greater than when the stand is set up vertically. , The upward repulsive force when the lid descends is reduced. Further, since the two open stays intersecting generate a force in the lateral direction, lateral rigidity with respect to the lid can be obtained.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1 showing a configuration example of a vehicle to which the present invention is applied, 1 is a vehicle body, 2 is a cabin, 3 is a trunk room, 4 is a front pillar, 5 is a front pillar cross member, 6 is a roll bar, 7 is a rear pillar, 8 Is a fixed roof, a rear roof rail, 9 is a door, 11 is a movable roof, and 21 is a trunk lid. The roll bar 6 is configured by connecting the left and right rear pillars 7, 7 with a rear roof rail 8, and a movable roof 11 is provided between the rear roof rail 8 and the front front cross member 5.

The movable roof 11 is provided with manual roof side lock devices 12 on the left and right sides, and a center handle 16 at the rear center. The roof side lock device 12 operates the front and rear lock pins 14, 14 by operating a side lever 13. The front and rear lock pins 14, 14 are connected to the rear end face of the front pillar cross member 5 and the front end face of the rear roof rail 8. Can be inserted into respective pin engaging holes (not shown) formed in the above. Although not shown, pin engagement holes are formed on the right and left rear end surfaces of the movable roof 11.

The trunk lid 21 includes a roof storage section 22 that allows the movable roof 11 to be taken in and out from the front, and includes an electric roof slide device 23. The roof slide device 23 is provided with roof engagement pins 25, 25 extending forward and to the left and right of a slider 24 that can be moved back and forth by a motor (not shown). It can be inserted into each of the pin engagement holes (not shown) formed on the left and right end surfaces. A trunk lock device 2 is provided at the rear of the trunk room 3.
6 are provided.

In the front part of the trunk room 3, an electric trunk lid lifting / lowering device 31 for lifting the trunk lid 21 while keeping the trunk lid 21 in a substantially horizontal state is incorporated. In this trunk lid elevating device 31, the elevating frames 33, 33 are engaged with left and right guide rails 32, 32 fixed to the front of the trunk room 3, and the elevating frames 33, 33 are moved by a motor and a feed screw mechanism (not shown). It is configured to be moved up and down. The trunk lid 21 is fixed to the lifting frames 33, 33. Further, an electric roof tilt-up device 18 that raises the rear end of the movable roof 11 is provided at the center of the front end surface of the rear roof rail 8 in the vehicle width direction.

FIG. 2 shows the opening and closing of the roof and the lifting and lowering of the trunk lid for each procedure.
Prior to the ON operation of the roof open / close switch from the mounted state of 1, first, the side lock device 12 of the movable roof 11 is released by manual operation of the side lever 13. When the roof open / close switch is turned on, the door glass is lowered in conjunction with this, the trunk lock device 26 is operated to release, the trunk lid lifting / lowering device 31 is operated, and the trunk lid 21 is raised. ,
The state shown in FIG. Subsequently, the roof tilt-up device 18 operates to push up the rear end of the movable roof 11 as shown in FIG.

Next, the roof slide device 23 operates,
The slider 24 moves forward in the trunk lid 21, and the left and right roof engaging pins 25, 25 enter the pin engaging holes on the rear end face of the movable roof 11, and then the roof tilt-up device 18 moves to the first lowering position. Perform the operation. Here, the roof open / close switch is turned off, and then the center handle 1
6 is manually operated to the OPEN position to push down the rear part of the movable roof 11 and to engage the roof engagement pins 25, 25.
In this state, the front end of the movable roof 11 is lifted upward from the front pillar cross member 5 as shown in FIG. Then, when the roof open / close switch is turned on again, the roof tilt-up device 18 performs the second lowering operation.

Subsequently, the movable roof 11 moves rearward due to the retreat of the slider 24, and the movable roof 11 is stored in the trunk lid 21 as shown in FIG. Subsequently, the trunk lid elevating / lowering device 31 performs the lowering operation of the trunk lid 21 as shown in (F), and at the lowered position, the rear end of the trunk lid 21 is locked by the trunk lock device 26. The roof open operation is performed as described above, and the roof close operation is performed in a generally reverse procedure.

In the above, the trunk lid elevating device 3
1 is specifically configured as shown in FIGS. That is, a pair of left and right guide rails 32, 32 extending in the vertical direction are coupled to a fixed plate 34, and a cross member 35 is provided at an intermediate portion, and 36 is a rail cover. A pair of left and right elevating rails 33, 33, which are engaged with the guide rails 32, 32 at the lower part via bearing assemblies 37, 37, have the upper part at the bulkhead 3 position.
8 and a cross member 39 is erected at an intermediate portion. The bearing assembly 37 is shown in FIGS.
As shown in FIG. 7, guide rollers 71, 72, 73 which come into contact with three surfaces of the front and rear surfaces and the outer surface of the guide rail 32 are provided as a pair in the upper and lower directions.

A pair of left and right feed screws 42, 42 driven by a motor 41 are provided. The power of the motor 41 is transmitted to an upper portion of one of the feed screws 42 via a gear mechanism in a gear case 43, and is transmitted to the other feed screw via a power transmission shaft 44 extending in a lateral direction and a gear mechanism in a gear case 45. 42 is transmitted to the upper part.
Nut members 46, 46 are provided to mesh with the left and right feed screws 42, 42, respectively, and coupling arms 47, 47 are coupled to the nut members 46, 46, respectively.

The feed screws 42, 42 are arranged along the guide rails 32, 32. The upper gear boxes 43, 45 are connected to the guide rails 32, 32, respectively. Brackets 48 supporting the lower end portions of the brackets 42 are connected to each other. Also, nut members 46, 4 meshing with the feed screws 42, 42
6, the connecting arms 47, 47 provided on the lifting frame 3
3, 33, respectively. Further, a brake type stopper mechanism 49 is provided on a movable portion between the power transmission shaft 44 and the gear mechanism in the gear case 45.

The cross members 35 of the guide rails 32 and the bulkheads 38 of the lift rails 33 are provided.
, Two open stays 51, 51 are laid in a cross-shaped arrangement. That is, two open stays 51 are provided in which a rod 53 is slidably incorporated in a cylinder 52 and an elastic force is applied in a direction in which both ends are separated from each other along the axial direction by a gas, a spring, or the like sealed therein. I do. The upper ends of the two open stays 51, 51 are connected to the left and right sides of the bulkhead 38 of the lifting rails 33, 33 by ball joints 54, 54 with the respective axes intersecting each other when viewed from the front-rear direction. Along with
The lower ends are connected to the left and right sides of the cross member 35 of the guide rails 32 by ball joints 55.

According to the trunk lid elevating device 31 having the above structure, the left and right feed screws 42, 42 are rotated synchronously by the driving of the motor 41, and the feed screws 42, 42
The coupling arms 4 are connected to the nut members 46, 46 respectively meshing with each other.
Left and right elevating rails 33, 33 connected via 7, 47
Guide rails 32, 3 via bearing assemblies 37, 37 with rolling of guide rollers 71, 72, 73.
2, the lifting frame 33, 3
The lifting operation of the trunk lid 21 fixed to 3 is performed. Then, at the time of the ascent operation as shown in FIGS. 4 and 5, the two open stays 51, 5 arranged in a cross shape are used.
Since the urging force of 1 acts on the bulkheads 38 of the lifting frames 33, 33 in the ascending direction,
The lifting operation load of the trunk lid 21 can be reduced, that is,
This contributes to reducing the driving load of the motor 41 required for the ascent operation.

Further, during the reverse descending operation, the repulsive force of the open stays 51, 51 is received. As shown in FIG. 4, the repulsive force F along the axial direction is equal to the horizontal force Fx and the vertical force Fx. Direction Fy, so that the trunk lid 2
1 can reduce the lowering operation load. In addition, the vertical reaction force Fy facing the lowering operation load has a characteristic of decreasing as the trunk lid 21 lowers as shown in FIG. 8, so that the driving load of the motor 41 required for the lowering operation is reduced. It is advantageous. In addition, two open stays 5
1 and 51 are arranged in a cross shape, and each horizontal force F
Since the action of pushing the left and right elevating frames 33, 33 outward from each other is obtained by x and Fx, the trunk lid 21 always has lateral rigidity with respect to the trunk lid 21 that is operated for elevating.

When the rear end of the trunk lid 21 is locked by the trunk lock device 26 at the lowered position of the trunk lid 21, in conjunction with this, the locking of the trunk lid elevating device 31 by the stopper device 49 is performed. Thus, fluttering on the front side of the trunk lid 21 due to vibration, wind pressure, and the like during traveling is prevented. When the trunk lock device 26 is released to open the trunk, the stopper device 49 is released in conjunction with the release, and the lifting / lowering operation of the trunk lid 21 is performed without any trouble. Here, in FIG.
Reference numeral 1 denotes a lifting / lowering state detection sensor, and 62 denotes an emergency cable.

Incidentally, specific application points, detailed structures, and the like can be appropriately changed in addition to the embodiment.

[0022]

As described above, according to the lid elevating device of the present invention, both ends are separated from each other along the axial direction.
Open stay that gives elasticity to the
One end of the pounce stay is on the vehicle body side and the other end is on the lid side.
Lifting device that connects each other and urges the lid to rise
In this case, the open stay is attached to a cylinder by a rod.
Are slidably assembled so that both ends are
Resilient force in the direction away from the
Use two stays and cross each other to form a cross
Arrange both ends of the open stay on the vehicle body and trunk.
Connected to the lid side via ball joints
Therefore, compared to the case of standing upright, the upward rebound force when the lid descends can be reduced, and the lateral force due to the cross-shaped arrangement of the two open stays provides lateral rigidity to the lid. Can be.

[Brief description of the drawings]

FIG. 1 is a partially exploded schematic perspective view showing a configuration example of a vehicle to which the present invention is applied.

FIG. 2 is a schematic explanatory view showing opening / closing of a roof and lifting / lowering of a trunk lid for each procedure.

FIG. 3 is an exploded perspective view showing an overall configuration of a trunk lid elevating device to which the present invention is applied.

FIG. 4 is a rear view showing a state in which the trunk lid is at a lowered position of the lifting device.

FIG. 5 is a rear view showing a state in the ascending position.

FIG. 6 is a cross-sectional view showing an engagement structure between a guide rail and a lifting frame.

FIG. 7 is an exploded perspective view of a guide rail, a lifting frame, and a bearing unit.

FIG. 8 is a reaction force characteristic diagram when the trunk lid is lowered by the open stay arrangement of the present invention.

[Explanation of symbols]

1 ... body, 3 ... trunk room, 6 ... roll bar, 11
… Movable roof, 12… roof side lock device, 18…
Roof tilt up device, 21 ... trunk lid, 22
... Roof storage section, 23 ... Roof slide device, 24 ... Slider, 25 ... Roof engagement pin, 26 ... Trunk lock device, 31 ... Trunk lid elevating device, 32 ... Guide rail, 33 ... Elevating frame, 41 ... Motor, 42 ... feed screw, 44 ... power transmission shaft, 46 ... nut member, 51 ... open stay, 52 ... cylinder, 53 ... rod , 54,
55… Ball joint .

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B62D 25/12

Claims (1)

(57) [Claims] 1. An open stay that applies elastic force in a direction in which both ends are separated from each other along an axial direction, and one end of the open stay is connected to the vehicle body and the other end is connected to the lid. In the lifting device for urging the lid in a direction to raise the lid, the open stay slidably moves the rod to the cylinder.
One where both ends are separated from each other along the axial direction
The two open stays are used and are arranged in a cross shape so as to cross each other, and both ends of the open stays are attached to the vehicle body and the trunk lid.
Respectively de side linked via a ball joint, the lifting device of the lid, characterized and this.