JPH0642941Y2 - Air spoiler lifting device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a device mounted on a vehicle body of an automobile to raise and lower an air spoiler.

[Conventional technology]

BACKGROUND ART A lift type air spoiler device is known in which an air spoiler for preventing the body from rising due to the influence of airflow during traveling of a vehicle is moved up and down between a storage position and a use position.

For example, in JP-A-59-156875 and JP-A-61-222875, a front air spoiler (hereinafter referred to as a front spoiler) is moved up and down between a storage position and a use position by an elevating device provided at a lower front end of a vehicle body. A device is disclosed which is adapted to allow this.

Such a lifting type air spoiler device raises the front spoiler and stores it in the vehicle body when the vehicle is traveling at a low speed or on a rough road.
There is no risk of the front spoiler colliding with obstacles such as curbs on sidewalks or stones on the road, and when traveling at high speeds, lower the front spoiler so that it drops below the vehicle body. The original function of the air spoiler can be fulfilled by reducing the amount of airflow entering the vehicle and thus reducing the lift of the vehicle body due to the airflow.

Further, in Japanese Patent Laid-Open No. 62-268778, a front spoiler is pivotally attached to a lower front end of a vehicle body with a horizontal pivot axis directed in the left-right direction, and the front spoiler is placed around the axis in a storage position and a use position. A rotary air spoiler device adapted to rotate is disclosed.

[Problems to be solved by the device]

In recent years, the front end portion of a vehicle body of an automobile is more rounded as a whole than an angular front end portion, and in particular, a curved surface shape having a center protruding forward in an arc shape in a plan view tends to be preferred.

In order to mount the air spoiler device on the curved front end portion of the vehicle body, the plane shape of the front spoiler must be an arc shape with the center protruding forward so as to follow the shape of the front end portion of the vehicle body.

If the plane shape of the front spoiler is such an arc shape, in the above-described conventional rotary air spoiler device, the distance from the pivot to the center of the front spoiler or the distance from the pivot to both ends of the front spoiler becomes large, and the front spoiler becomes large. To store the whole in the car body,
A large storage space is required, and the layout must be considered so that the vehicle body parts are not located on the rotation trajectory of the front spoiler.

In that respect, the lifting type air spoiler device has an advantage that even if the front spoiler has any planar shape, a storage space of the same shape is sufficient, and there is little possibility that the lifting and lowering of the front spoiler is hindered by the body parts. .

However, in the above-described conventional lifting type air spoiler device, it is difficult to support at one point a long front spoiler whose length in the left-right direction is substantially equal to the lateral width of the vehicle body, so it is supported at two or more points. . Therefore, in order to raise and lower the front spoiler and raise and lower each supporting point in synchronization with each other, the whole lifting device becomes large in size, and the space for housing this lifting device also becomes large. As a result, the advantage that the storage space of the front spoiler itself is small is hampered.

In addition, when raising and lowering the front spoiler with multiple lifting devices, due to variations in vehicle body size, slight deviations in the mounting position and mounting angle of each lifting device, light collisions with other objects on the front spoiler, etc. If even a slight deviation occurs, excessive stress may be applied to the movable part during operation, resulting in a non-smooth operation or a so-called stick phenomenon, which may cause a malfunction.

The present invention has been made in view of the above problems of the conventional technology, and operates smoothly even if there is some misalignment between the lifting devices and deviation of the lifting trajectory. It is an object of the present invention to provide an air spoiler lifting device that can be made compact and can be downsized.

[Means for Solving the Problems]

In order to achieve the above object, in the present invention, one end of an elevating rod is connected to an elevating means provided on a vehicle body, and the other end is also connected to an air spoiler. In an air spoiler lifting device for lifting and lowering an air spoiler, each end of the lifting rod is sandwiched by an elastic body from the side to be connected to the lifting means and the air spoiler, respectively. The device and the air spoiler can be tilted slightly to the side, and the middle part of the lifting rod is
By providing the vehicle body with a bearing that is slidable in the vertical direction, tiltable in the lateral direction, and non-displaceable in the lateral direction, the elevating rod has an appropriate range around the portion supported by the bearing. It is characterized by being able to tilt laterally over.

The bearing is a spherical bearing in which the middle part of the inner surface bulges inward in an arcuate cross-section (claim 2), and the elevating rod is slidable in the vertical direction and rotatably receives a spherical body that penetrates. (Claim 3) is preferable.

[Action]

According to the air spoiler lifting / lowering device of the present invention, the elastic body of each part is locally elastically deformed to cause the lifting / lowering when the synchronization with other lifting / lowering devices is misaligned or the hoisting trajectory is misaligned. When the rod is laterally biased or tilted with respect to the lifting means or the air spoiler, the above-mentioned synchronization deviation and deviation of the elevation trajectory are compensated, and even if there is deviation or deviation, the entire device Can operate smoothly.

〔Example〕

 1 to 4 show a first embodiment of the present invention.

In FIG. 4, (1) is a vehicle body, (2) is a front air spoiler (hereinafter simply referred to as front spoiler), and (3) is a pair of left and right air spoilers provided on both sides of the front end of the vehicle body (1). In the lifting device (hereinafter simply referred to as lifting device), the front spoiler (2) is shown by the solid line in FIG. 4 by the both lifting devices (3) and the use position hanging from the front end of the vehicle body (1) and the imaginary line. It is raised and lowered to and from the storage position shown in the front end of the vehicle body (1).

Since both the left and right lifting devices (3) have the same structure which is symmetrical with respect to the left and right, only one of them will be described below and the other one will be omitted.

As shown in FIGS. 1 to 3, the lifting device (3) includes a mounting means (7) including a bolt (5), an elastic body (6), and the like on a bracket (4) fixed to the vehicle body (1). ) Is supported by a box-shaped case (8), and a lid (9) for closing the open end surface of the case (8).

A motor (11) is arranged in the upper front part of the case (8) with its rotation shaft (10) capable of forward and reverse rotation facing downward.

Below the motor (11) in the case (8), a helical gear (13) having a shaft portion (12) oriented in the vertical direction is pivotally supported by a bearing (14), and the shaft portion (12) is ) Is
It is connected to the lower end of the rotating shaft (10) by a coupling (15).

At the center of the case (8) in the front-rear direction and behind the motor (11), a vertical screw rod (16) parallel to the rotation axis (10) of the motor (11) has a pair of upper and lower bearings. (1
7) is pivotally supported.

A helical gear (18) that meshes with the helical gear (13) is integrally formed on the lower portion of the screw rod (16).

The screw rod (16) has a transmission mechanism (19) composed of both helical gears (18) (13) and a coupling (15), and is driven by a motor (1
It is linked to the rotating shaft (10) of 1) and can be rotated in the opposite direction to the rotating shaft (10) by the forward and reverse rotation of the rotating shaft (10) of the motor (11).

A male screw (16a) is threaded on a portion of the screw rod (16) above the helical gear (18).
In a), a vertically oriented female screw hole (21) formed in a rectangular parallelepiped nut member (20) is screwed.

Reference numeral (22) is a slider mounted on the rear portion of the screw rod (16) in the case (8) so as to be slidable in the vertical direction, and a square concave hole (23) is formed in the front end surface of the slider. The nut member (20) is fitted into the recessed hole (23) from the front. A vertical shaft hole (24) that allows the screw rod (16) to freely penetrate is formed in the upper and lower pieces of the rectangular recessed hole (23) in the slider (22).

In the first embodiment, the nut member (20) is formed separately from the slider (22) and fitted in the rectangular recessed hole (23) of the slider (22). ) May be directly drilled in the slider (22).

The vertical and horizontal dimensions of the rectangular recessed hole (23) are slightly larger than the vertical and horizontal dimensions of the nut member (20), so that the nut member (20) inside the rectangular recessed hole (23) It is preferable to allow some vertical and horizontal movement.

At the center of the rear portion of the slider (22) in the shape of a rectangular frame, the upper end of the vertically movable rod (25) has a horizontal shaft (26) directed to the left and right, and the upper end of the vertically movable rod (25). An elastic body (27) such as rubber is sandwiched between the slider (22) and the left and right side pieces (22a) and is pivotally attached.

The elevating rod (25) can rotate about the shaft (26) with respect to the slider (22), and by locally compressing the left and right elastic bodies (27), the lower end can be either forward, backward, leftward, or rightward. Can be tilted to some extent, and the upper end is the shaft (26)
Can be slightly offset in the axial direction.

The elevating rod (25) hangs down through the case (8), and its lower end has a shaft (29) facing the front-rear direction on a bracket (28) fixed to the side rear surface of the front spoiler (2). It is pivotally attached.

The part of the lifting rod (25) slightly above the axis (29) is
The bracket (28) and the retaining plate (3
0) through the central hole (32) of the rectangular parallelepiped elastic body (31).

Therefore, by locally compressing the elastic body (31), the upper part of the elevating rod (25) can move forward, backward, leftward and rightward with respect to the bracket (28) and the front spoiler (2) integrated with the bracket (28). You can lean to some extent.

Since the lifting rod (25) easily tilts in the front-back direction with respect to the bracket (28), the (33) is fitted onto the shaft (29) between the bracket (28) and the lower end of the lifting rod (25). The spacer ring is This spacer ring (33)
For example, it is preferable to use an elastic body such as rubber.

A bearing (35) in which the middle part of the inner surface of the hole (34) bulges inward in an arcuate cross section is provided slightly above the penetrating portion of the lifting rod (25) in the case (8).

Reference numeral (36) is a bellows for protecting a portion of the lifting rod (25) projecting from the case (8) from rainwater, splash water, etc., and its lower end is in close contact with the elastic body (31). It is fixed to the lifting rod (25), and the upper end is locked to the penetrating portion of the lifting rod (25) in the case (8).

(37) is a cylindrical cover with an open lower end, and the bellows (3
6) has a size capable of accommodating the fold when it is shrunk, and its upper end engages with the upper end of the bellows (36) along with the penetrating part of the lifting rod (25) in the case (8). It has been stopped.

In the case (8), any one of the tips of the brush pieces (38) provided on one side surface of the slider (22) is provided in the contact plate (39) fixed in the case (8). By moving it away from the fixed contact piece (not shown) of
The upper and lower positions and lower limit position of 2) are detected and the motor (11)
A control device (40) is provided so as to stop the energization of the device.

The control device (40) may also be used as a pair of upper and lower limit switches (not shown) configured to operate by contacting the slider (22) when the slider (22) reaches the upper limit position and the lower limit position. Good.

In the above structure, the motor (11), the transmission mechanism (19), the screw rod (16), the slider (22) and the like form an elevating means (X) for elevating the elevating rod (25).

In this embodiment, the rotary shaft (10) of each motor (11) in the left and right lifting devices (3) is set in the counterclockwise direction in FIG. 2 (hereinafter referred to as clockwise or counterclockwise direction in FIG. 2). The screw rod (16) is rotated clockwise through the transmission mechanism (19) and is screwed with the screw rod (16). The member (20) is raised by the rotation of the screw rod (16). Accordingly, the slider (22) fitted with the nut member (20), the lifting rod (25) pivotally attached to the slider (22), and the front spoiler (2) suspended from the left and right lifting rods (25). ) Moves up and down as a unit.

When the nut member (20), and the slider (22), elevator rod (25), front spoiler (2), etc. accompanying it reach the upper limit position, the motor (11) is actuated by the action of the control device (40).
Operation is stopped and the front spoiler (2)
It is maintained in the retracted position retracted into the vehicle body (1).

From this state, when the rotary shafts (10) of the motors (11) in the left and right lifting devices (3) are simultaneously rotated in the clockwise direction, the screw rod (16) moves counterclockwise via the transmission mechanism (19). The nut member (20) that is rotated in the direction and screwed with the screw rod (16) is lowered by the rotation of the screw rod (16). Along with this, the slider (22), the elevating rod (25) and the front spoiler (2) are also lowered.

When the nut member (20) and the slider (22), elevator rod (25), front spoiler (2), etc. accompanying it reach the lower limit position, the operation of the control device (40) causes the motor (11).
Operation is stopped and the front spoiler (2)
It is maintained in a use position that hangs from the vehicle body (1).

In the first embodiment, the lifting rods (25) of the left and right lifting devices (3) are not synchronized with each other, and even if one of them is raised or lowered slightly later than the other, the front spoiler (2) is raised or lowered. On the way, the elastic bodies (27) (31) at the upper and lower parts of the lifting rod (25) are locally elastically deformed, so that the left and right lifting rods (25) are slightly left and right about the bearing (25). The front spoiler (2) can be smoothly moved up and down, and the front spoiler (2) can be smoothly moved up and down to the storage position and the use position by only tilting the front spoiler (2) so that one end is higher than the other end when viewed from the front. Once reached, the front spoiler (2) will always return to a horizontal position.

5 and 6 show a second embodiment of the present invention.

The members corresponding to those shown in FIGS. 1 to 4 are designated by the same reference numerals, and detailed description thereof is omitted.

In this embodiment, a helical gear (41) that meshes with a helical gear (13) is provided below the motor (11) in the case (8), and the central axis of the motor (1)
A shaft cylinder (42) parallel to the rotating shaft (10) of 1) is rotatably mounted with a bearing member (43) integrated with the case (8).

A slit (44) having a slit shape is cut from the upper end of the receiving cylinder part (42a) above the helical gear (41) in the shaft cylinder (42) to the middle part, and the slit (44) is formed. ) Is engaged with a pair of arm rods (47) horizontally projecting from the outer circumference of a female screw tube (46) having a female screw hole (45) in the center.

A cylindrical elastic body (48) made of rubber or the like is fitted between the outer circumference of the female screw tube (46) and the inner surface of the receiving cylinder portion (42a).

The upper half of the elastic body (48) is rotatably fitted in a receiving hole (49) that is integrally formed with the case (8) and opens downward. Due to the wall (49a) and the bottom wall of the receiving cylinder (42a), the elastic body (48) and the threaded tube (46) fitted inside the elastic body (48) are prevented from moving in the vertical direction with a proper margin. Has been done.

A male screw (50a) that engages with the female screw hole (45) is engraved in the female screw tube (46) on the outer periphery of the upper half of the hoisting pipe (52), so that the hoisting rod (52) A screw rod (50) formed as a part is screwed.

The screw rod (50) loosely penetrates the shaft hole (51) and the shaft cylinder (42) formed in the upper wall (49a) of the receiving hole (49).

Reference numeral (53) is a spherical bearing provided slightly above the penetrating portion of the lifting rod (52) in the case (8), which is vertically slidable in the middle portion of the lifting rod (52) and has a spherical shape. The center of (53a) is used as a fulcrum so that it can be tilted slightly forward, backward, left and right.

A front spoiler (2) is attached to the lower end of the lifting rod (52) with the same configuration as that of the previous embodiment,
With this mounting structure, the screw rod (50) integrated with the lifting rod (52) is prevented from rotating around the central axis.

In this embodiment, a coupling (15), a helical gear (13), a shaft cylinder (42) including a helical gear (41),
The arm rod (47) forms a transmission mechanism (19) for transmitting the rotational force of the rotation shaft (10) of the motor (11) to the female screw tube (46), and the transmission mechanism (19) , Motors (11)
The female screw tube (46) and the screw rod (50) forming a part of the elevating rod (52) form an elevating means (X) for elevating the elevating rod (52).

According to the second embodiment, the rotary shaft (10) of the motor (11) is
When the female screw tube (46) is rotated in a predetermined direction, the female screw tube (46) is rotated clockwise in FIG. 6 via the transmission mechanism (19). A screw rod (50) screwed into the female screw hole (45), an elevating rod (52) integrated therewith, and a front spoiler (2).
Can be raised.

When the rotary shaft (10) of the motor (11) is rotated in the opposite direction to the above case, the female screw tube (46) is rotated counterclockwise in FIG. 6, and this rotation causes the screw rod ( 50)
The lifting rod (52) and the front spoiler (2) are lowered.

Should the lifting rods (52) in the left and right lifting devices (3) move up and down without being synchronized, the upper and lower elastic bodies (48) (31) are locally elastically deformed, so that the lifting rods (52) are moved. The (52) and the screw rod (50) integrated with the (52) can be slightly tilted forward, backward, leftward and rightward with the receiving portion of the spherical bearing (53) as a fulcrum, and can be smoothly moved up and down.

The other actions and effects are the same as those of the first embodiment.

[Other Examples]

The present invention can be implemented in addition to the above-described embodiments with various changes and modifications.

For example, a pair of left and right lifting devices (3) are attached to the rear part of the vehicle body (1) upside down with respect to the above case, and at the tip ends of both lifting rods (25) (52) extending upward, Alternatively, a rear air spoiler (rear spoiler) (not shown) may be lifted and lowered above the rear portion of the vehicle body (1).

[Effect of device]

According to the device of the present invention, the elastic body of each part is locally elastically deformed, so that the lifting rod can be laterally biased or tilted with respect to the lifting means or the air spoiler.

As a result, there were deviations in synchronism when raising and lowering one air spoiler by a plurality of lifting devices, variations in vehicle body size, and deviations in the lifting trajectory due to slight deviations in the mounting position or mounting angle of the lifting device. The air spoiler is compensated for by compensating for the deviation of synchronism at the time of, and the deviation of the hoisting trajectory
It is possible to smoothly move up and down without causing a stick phenomenon or the like.

Therefore, no special means for synchronizing is required, and since it is not necessary to accurately determine the mounting position and the like, it is possible to reduce the size and simplification of the entire apparatus and simplify the mounting work and the like.

In addition, if each end of the lifting rod is sandwiched by the elastic body from the side and connected to the lifting means and the air spoiler respectively,
When the air spoiler receives a large wind pressure, etc., the lifting rod and the air spoiler may largely swing laterally around the connecting portion between the lifting rod and the lifting means.
As in the invention of the present application, by providing the vehicle body with a bearing that supports the intermediate portion of the lifting rod so as to be slidable in the vertical direction, tiltable to the side, and non-displaceable to the side, the lifting rod as described above is provided. It is possible to prevent a large lateral swing of the hoisting rod, and it is possible to allow a slight swing of the hoisting rod due to deviation of synchronism when the air spoiler is hoisted by the hoisting means and deviation of the mounting position or mounting angle. Because it is meaningful.

[Brief description of drawings]

1 to 4 show a first embodiment of the present invention. FIG. 1 is a partially cutaway side view showing a state where a case of an air spoiler lifting device is removed, and FIG. 1 is a cross-sectional plan view taken along the line AA of FIG. 1, FIG. 3 is a vertical sectional front view taken along the line BB of FIG. 1, and FIG. 4 is a front part of an automobile equipped with an air spoiler lifting device. FIG. 5 is a vertical sectional side view of the second embodiment of the present invention, and FIG. 6 is an enlarged transverse sectional view taken along the line CC of FIG. (1) vehicle body, (2) front spoiler (3) air spoiler lifting device, (25) (52) lifting rod (27) (31) (48) elastic body, (35) (53) bearing (X) lifting means

Claims (3)

[Scope of utility model registration request] 1. An elevating rod has one end connected to an elevating means provided on a vehicle body, the other end is also connected to an air spoiler, and the elevating means operates to elevate the air spoiler through the elevating rod. In the air spoiler lifting device according to the above, the lifting rod is connected to the lifting means and the air spoiler by sandwiching each end of the lifting rod with an elastic body from the side, so that the lifting rod moves relative to the lifting means and the air spoiler. By allowing the vehicle body to tilt slightly to the side, and providing a bearing on the vehicle body that supports the middle part of the lifting rod as a vertically slidable, tiltable sideways, and non-displaceable sideways, An air spoiler lifting device, wherein the lifting rod is capable of tilting laterally over an appropriate range around a portion supported by the bearing. 2. The air spoiler lifting device according to claim 1, wherein the bearing has a medial inner surface bulging inward in an arcuate cross section. 3. The air spoiler lifting device according to claim 1, wherein the bearing is a spherical bearing in which the lifting rod is slidable in the vertical direction and rotatably receives a penetrating spherical body.