JPH04104783U - Automotive rear spoiler device - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce increase in air resistance by raising a spoiler plate only when necessary and laying it down when unnecessary, and to ensure sufficient storage space for luggage in the rear part of the vehicle body. [Structure] A recess is formed in the rear part of the vehicle body, the recess can be opened and closed by a spoiler plate, and a spoiler plate elevating means for elevating and lowering the spoiler plate is provided in the recess. The spoiler plate is supported such that its upper surface is flush with the upper surface of the rear portion at its lowest point, and its upper surface projects obliquely at a predetermined angle with respect to the direction in which the vehicle travels straight ahead at its highest point. The elevating means includes a pressure spring that pushes up the spoiler plate, a restraint part that is provided to releasably restrain the spoiler plate against the pressure spring at the lowest point, and an output side tip that is attached to the spoiler plate, etc. It is provided with a connected lifting drive means and a restraining part driving means provided to release the restraining part in conjunction with the raising operation of the raising and lowering drive means and to restrain it in conjunction with the lowering operation of the raising and lowering driving means.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an automobile rear spoiler device.

0002

[Conventional technology]

Conventionally, when a car is running, the airflow that flows along the top surface of the car body separates from the car body. (for example, near the bending edge in the vehicle width direction of the trunk lid of a sedan-type passenger car) A spoiler is placed, and the hydrodynamic effect of this spoiler causes reverse lift (downward movement) on the car body. It is well known that driving stability at high speeds is improved by Ru.

0003 In conventional car spoilers, the spoiler plate is fixed to the car body. There are many things. However, this spoiler only works when the vehicle speed exceeds a certain speed. It is only effective when driving at low speeds, and may actually increase air resistance when driving, causing movement. This not only causes a decrease in power performance and an increase in fuel consumption, but also causes shock at low speeds. Its disadvantage is that it tends to be shunned by middle-aged people who are sensible due to its stern appearance. there were.

0004 Therefore, a proposal was made to make the spoiler plate rotatable and stand it up only when in use. (Utility Model Application Publication No. 57-74888). However, with this technology, the spoiler plate is raised manually by pushing and pulling a lever. This is to be done by moving a coiled wire around the axis. Moreover, spoiler Both ends of the spring are fixed in the middle of the spoiler plate and on the car body side, so the spoiler plate can be tilted down at all times. The structure is such that the restoring force of this spring acts in the direction. Therefore, in order to make the spoiler board stand up, it is necessary to use the spoiler board's own weight. The lever must be pushed and pulled against the resultant force of the force and the restoring force of the spring, which requires a large amount of force. Ru. Suppose that this standing operation is performed using a driving means such as a motor and its transmission mechanism. If this is desired, the scale of the driving means must be increased. However, the rear part of the car body (especially the trunk lid) is used to store luggage. It is necessary to secure sufficient space for the be.

[0005]

[Problem that the idea aims to solve]

In view of the above-mentioned problems, the purpose of this invention is to remove the spoiler plate when the vehicle reaches the required speed. When it is not needed, it can be stood up smoothly and easily, and when it is not necessary, it can be laid down to reduce air resistance. In addition to reducing the increase in To provide a rear spoiler for an automobile that can secure sufficient luggage storage space in the rear part. It's there.

[0006]

[Means to solve the problem]

In order to achieve the above-mentioned purpose, the present invention: As a first idea, A recess is formed in the rear part of the vehicle body along the vehicle width direction, and a spoiler is supported within the recess. - The recess can be opened and closed by a plate, and the spoiler plate is raised and lowered into the recess. In the automobile rear spoiler provided with spoiler plate elevating means, the spoiler The spoiler plate falls down into the recess at the lowest point, and the top surface of the spoiler plate is brought down to the rear part. The top surface of the spoiler plate becomes flush with the top surface, and the top surface of the spoiler plate faces the straight direction of the vehicle at the highest point. and is supported so as to project obliquely at a predetermined angle, and the elevating means is A pressure spring is provided to push up the spoiler plate, and the pressure spring is provided at the lowest point. A restraint provided to releasably restrain the spoiler plate against the pressing force of the spring. and an elevator whose output end is connected to the spoiler plate or the spoiler plate support frame. The lowering drive means releases the restraining part in conjunction with the raising operation of the lifting drive means. and a restraining part driving means provided to restrain the vehicle in conjunction with the lowering operation. The technology and As a second idea, In the device according to the first invention, The spoiler plate elevating means has a first predetermined vehicle speed and a second predetermined vehicle speed lower than the first predetermined vehicle speed. a vehicle speed detector provided to detect a predetermined vehicle speed of the spoiler plate; Spoiler board position value detector installed to detect when it is at the ascending point or the lowest descending point in response to inputs from the vehicle speed detector and the position detector, the vehicle speed is determined to be the first predetermined value. Distinguish that the vehicle speed is at the highest point and raise the elevation drive means. A climb command signal is output, the vehicle speed is the second predetermined vehicle speed, and the position is the highest point. vehicle speed/position discrimination for outputting a descending command signal to the elevating drive means and a power supply means for supplying current to the lifting drive means and the vehicle speed/position discrimination means. A technology that has It is composed of

[0007]

【Example】

An embodiment of the present invention will be described with reference to the drawings. Figure 1 shows the rear part 2 of a vehicle body 1 to which the rear spoiler device of the present invention is installed. There is. Moreover, as shown in FIGS. 2 and 3, the upper surface 42 of the spoiler plate 4 is the lowest point. It becomes flush with the rear part 2 of the vehicle body 1 at the highest point, and its upper surface 42 is flush with the vehicle body at the highest point. It faces the forward direction and is supported in a tilted protruding manner so as to form an angle θ with respect to the straight direction of the vehicle. This angle θ is preferably about 30 degrees. The above-mentioned elevating and lowering operation is performed by elevating means 5, and this elevating means 5 is operated by pressing spring 5. 1, restraint part 52, elevation drive means 53, restraint part drive means 54, vehicle speed detector 532, Spoiler plate position detector 533, vehicle speed/position discrimination means 534, and power supply means 535 It consists of

[0008] Regarding the pressure spring 51 In this embodiment, a torsion bar is used as the pressure spring 51, but this is not necessary. If necessary, other known members having restoring force may be used. This pressing spring 51 has a substantially U-shape, and has two sides 51a and 51c having free ends. It has one side 51b sandwiched between these two sides 51a and 51c. On the other hand, the lower surface 43 of the spoiler plate is provided with a center line in the longitudinal direction of the spoiler plate 4 in between. The inner angle member 44a and the outer angle member 44b are fixed symmetrically. child A spoiler plate support frame 44 is formed by these angle members 44a and 44b. As shown in FIGS. 6 and 7, the two sides 51a and 51c having the free ends are One of the sides 51a is mounted inside the recess 3, that is, on the vehicle body 1 side, with the bar support 6. The other side 51c has a bar support 6 fixed to the inner angle member 44a. It is attached to the spoiler plate 4 side. Furthermore, on these two sides 51a and 51c The sandwiched side 51b is inserted into the through hole 7 drilled at the code position of the outer angle member 44b. It is inserted loosely. Here, in the no-load state (restored state), the pressure spring 51 is One side 51c attached to the angle member 44a is a plane formed by the other two sides 51a and 51b. It is formed to have a helix angle with respect to the other hand. Note that this torsion angle is usually Match the angle θ mentioned above. Therefore, the spoiler plate 4 is supported by this pressing spring 51 until it reaches the highest point. It is urged upward by the force. Therefore, due to the restoring force of the pressing spring 51, the spot is The force due to the weight of the roller plate 4 and its support frame 44, the frictional force against the upward movement, etc. Therefore, the load on the elevation drive means 53, which will be described later, can be reduced.

[0009] About the restraint part 52 9 is a sectional view taken along the line C-C in FIG. 1, and FIG. 10 is an enlarged view of the restraint part 52. FIG. 11 is a diagram showing the engagement state between the bifold claw 521 of the restraining portion 52 and the L-shaped protrusion 522. It is. First, point downward at the longitudinal center of the lower surface 43 of the spoiler plate 4 (see Fig. 1). to fix both ends of the inverted Ω-shaped ring 523. Then, of the bottom surface of the recess 3, The lower end of an inverted L-shaped hook 524 is pivotally attached to a position opposite to the ring 523, The ring 523 can be engaged with and released from the ring 523. An L-shape is placed in the middle of this hook 524 in the vertical direction. The proximal end of the protrusion 522 is fixed, and a hook return spring is attached to the protrusion 522 and the bottom surface of the recess 3. Attach both ends of the hook 525 and apply a restoring force to the hook 524 in the direction to engage the ring 523. effect. By the ring 523, hook 524, and hook return spring 525, A restraining portion 52 is formed.

0010 About the restraining part driving means 54 The tip side 522a (facing in the horizontal direction) of the L-shaped projection 522 has a The upper pieces 521a of the bifold claws 521 shown are opposed to each other. This bi-fold claw 521 is connected to the upper piece 52. 1a, the lower piece 521b, the upper piece 521a, and the lower piece 521b by rotating the hook 524. A bending shaft 521c rotatably connects the upper piece 521a to the lower piece 521 in parallel with the plane. It consists of a small spring 521d having a restoring force in the direction of making it straight with respect to b, The lower end of the lower piece 521b is fixed to a shaft 530, which will be described later, and is used for lifting and lowering. It is interlocked with the output of the means 53. This bi-fold claw 521 forms a restraining portion driving means 54. be done. As shown by hatching in FIG. 11, the upper piece 521a is connected to the release side contact surface X. It has a restraining side contact surface Y. The shaft 530 to which the lower end of the lower piece 521b is fixed is rotated toward the release side of the restraint part 52. When moving (in the direction of the left arrow in FIG. 11), the release side contact surface The L-shaped protrusion 5 contacts the end side 522a and resists the restoring force of the hook return spring 525. 22 (imaginary line position in Fig. 10), the hook 524 is released from the ring 523. The spoiler plate 4 is released from the restraint. On the contrary, the shaft 530 to which the lower end of the lower piece 521b is fixed is the When rotating laterally (in the direction of the right arrow in Fig. 11), the restraining side contact surface Y is an L-shaped protrusion. 522 and engages the hook 524 with the ring 523. Match. Furthermore, when the shaft 530 rotates toward the restraining side, the upper piece 521a becomes smaller. It bends around the bending shaft 521c against the restoring force of the spring 521d, and the tip side The necessary The hook 524 never engages the ring 523 more deeply. Note that it is usually sufficient to provide the restraining portion 52 and the restraining portion driving means 54 at one location. However, there is no problem in providing more than one.

[0011] Regarding the elevating drive means 53 In this embodiment, a DC motor is used as the drive source for the lifting drive means 53 and the power supply means 535. A storage battery (not shown) that is electrically connected to the motor 53a and the motor 53a is used. Ru. Of course, if necessary, a three-phase motor can be used in place of the DC motor 53a for forward and reverse rotation. It may be constructed so that it can rotate, or the output shaft can be rotated in forward and reverse directions using a gear train, etc. There is no harm in doing so. Now, in this example, the DC motor 53a is connected to the rear part 2 of the vehicle body 1 as shown in FIG. It is supported outside the recess 3 across the peripheral wall of the recess 3. This prevents rainwater from entering recess 3. This is in consideration of what would happen if something like this were to infiltrate. In addition, the output shaft of the motor 53a 53b faces the vehicle's backward movement side, and a small gear 53c is fixed to its tip. And this As shown in FIG. It meshes with the wheel 53d, and the rotation of the output shaft 53b of the motor 53a is decelerated. moreover, A sliding rod drive gear 53e is fixed to the vehicle rearward moving side of the shaft 530. The sliding rod drive gear 53e is supported slidably in the vehicle width direction at the top and bottom, respectively. The driving gear 53e is provided on the center side in the same direction of the sliding rods 53f and 53g. The teeth 53f' and 53g' are in mesh with each other. Further, as shown in FIGS. 6 and 7, the teeth of each sliding rod 53f, 53g The opposite ends of 53f' and 53g' are connected to a sliding rod guide 53h. Ru. Therefore, the sliding rods 53f and 53g slide only in the vehicle width direction. stop The sliding rods 53f and 53g have respective pantographs 53i ( (one not shown) is provided so that each member is in a horizontal plane. this bread tag The tip of the rough 53i on the center side in the vehicle width direction is fixed to the sliding rod 53f, and the pantograph Each outer end in the vehicle width direction of the flap 53i is slidably connected to the pantograph guide 53j. will be combined. This pantograph guide 53j has three concave portions at the bottom so that the pantograph guide 53j faces the direction in which the vehicle moves backward. fixed to the surface. In addition, the tip of the pantograph guide 53j on the rearward side of the vehicle body is connected to a continuous rod. 53k, and the upper end of the connecting rod 53k (the output side tip 5 of the elevating drive means) 31) is pivotally connected to the outer angle member 44b fixed to the lower surface 43 of the spoiler plate. Ru.

0012 Therefore, the output shaft 53b of the motor 53a rotates toward the upward side of the spoiler plate 4 ( (normal rotation), the sliding rods 53f and 53g move outward in the vehicle width direction, and the pantograph The graph 53i extends from the virtual line position to the solid line position in Fig. 7, and the lower end of the connecting rod 53k is the vehicle body. It is pushed to the reverse side, and the connecting rod 53k is raised from the position shown in Figure 4 to the position shown in Figure 5. stand up Then, the spoiler plate 4 is tilted to the position (the highest point) forming the above-mentioned angle θ. It stands out. On the other hand, the output shaft 53b of the motor 53a rotates toward the downward direction of the spoiler plate 4 (reverse rotation). Then, the operation is performed in the opposite manner to the above, and it reaches the descending point again. In the illustrated embodiment, the sliding rods 53f, 53g each slide only in the horizontal direction, Since the pantograph 53i is used, the spoiler device occupies the rear part 2 of the vehicle body. space (especially in the vertical vertical direction) can be reduced, reducing the space for storing luggage, Enough luggage space can be secured. In addition, the code 53m in the diagram What is shown is a bearing.

[0013] In addition, one side edge of the spoiler plate 4 on the vehicle body's reverse side and its lower side are provided with a trajectory drawn by the side edge. A foldable waterproof curtain 61 is provided along the When the plate 4 is tilted up, the airflow passing through the spoiler plate upper surface 42 4. It is possible to extremely reduce the possibility of the wafer being disturbed at the rear and entering the recess 3. difference Furthermore, the upper end of the drain discharge pipe 62 is opened on the rearward side of the vehicle body on the bottom surface of the recess 3, and the drain discharge pipe 62 is opened. A drain receiver 63 with a funnel-shaped upper part is provided near the lower end of the pipe 62, so that Even if rainwater enters the recess 3, it will flow toward the drain discharge pipe 62 due to the inertial force when the vehicle accelerates. It can collect rainwater smoothly and easily, and prevents wet luggage etc. stored in the rear part 2 of the vehicle body. This can be prevented.

[0014] About vehicle speed detector 532 Since this is well known, its explanation will be omitted. In addition, usually the first designated vehicle The speed is about 70 km/h, and the second predetermined speed is about 60 km/h, so-called hunting speed. A hysteresis of about 10 km/h (Figure 13) should be provided to avoid the is desirable. and the vehicle speed is at the first predetermined vehicle speed or the second predetermined vehicle speed. is output to vehicle speed/position discrimination means 534 provided at the next stage.

[0015] About spoiler plate position detector 533 As mentioned above, when the lifting drive means 53 operates, the sliding rods 53f and 53g move toward the vehicle width. It slides in the direction. Therefore, as shown in Fig. 8, one sliding rod 53g is A protruding piece 53l facing upward is provided at the tip on the center side in the vehicle width direction, and the spoiler plate 4 is lowered to its lowest position. The lower limit switch LS is arranged at the position corresponding to the protrusion 53l when the point is reached. Similarly, when the spoiler plate 4 reaches the highest point, the position corresponding to the protrusion 53l A limit switch LS is installed on the top of the limit switch LS. And this limit switch LS The position of the spoiler plate 4 is detected by the operation on the lower and LS, and the vehicle speed and position installed in the next stage are detected. The position discrimination means 534 determines whether the spoiler plate 4 is at the lowest point or the highest point. It outputs an identification signal. Although not shown, other well-known devices such as photoelectric switches, proximity switches, etc. The steps identify whether the spoiler plate 4 is at the lowest point or highest point. There is no problem even if it is configured as follows.

[0016] Regarding vehicle speed/position discrimination means 534 The vehicle speed detector 532 indicates that the vehicle speed is at the first predetermined vehicle speed or the second predetermined vehicle speed. is input, and the spoiler plate position detector 533 indicates that the spoiler plate 4 is at the lowest point or Input a signal to identify whether it is at the highest point or not, and issue an ascending command to the elevating drive means 53. An example of the vehicle speed/position discrimination means 534 that outputs a signal or a descending command signal is shown in FIG. show. Further, a flowchart thereof is shown in FIG. When explaining the power supply means 535 and the elevating drive means 53, first, the elevating drive means The DC motor 53a, which is a part of the spoiler plate 4 up) side electromagnetic contactor MC and the motor 53a reverse (spoiler plate 4 (lower) side magnetic contactor MC. In addition, the power source means 53 5 is also electrically connected to vehicle speed/position discrimination means 534 and supplies current.

[0017] When a car accelerates from a stopped state, the sliding rods 53f and 53g are spoilers. It is located at the position corresponding to the lowest point of plate 4, and the lower limit switch LS is activated. When the vehicle speed reaches 60 km/h, a first predetermined signal which is a part of the vehicle speed detector 532 is detected. The vehicle speed detection switch SW60 is turned on, and in this state, the magnetic contactor MC and Since the lower MC is not operating, relay R60 is energized and self-holding. Ru. Furthermore, when the vehicle speed reaches 70 km/h, a second predetermined Vehicle speed detection switch SW70 is turned on, relay R70 is energized and self-held, The electromagnetic contactor MC is energized and self-maintained, and the motor 53a rotates normally. On the other hand, electromagnetic Before the upper contactor MC is energized, the lower limit switch LS is activated and is not energized. After the magnetic contactor MC is installed, an interlock is applied between the top and bottom of the MC. Therefore, in this state, the lower part of the electromagnetic contactor MC remains demagnetized. Then, when the spoiler plate 4 rises and reaches the highest point, it corresponds to the lowest point. position, limit switch LS is activated, relay R60, relay R70 and The self-holding on the magnetic contactor MC is released, each relay is demagnetized, and the motor 53a stops. Then, the first predetermined vehicle speed detection switch SW60 and the second predetermined The vehicle speed detection switch SW70 will wait for the next input, and the spoiler plate 4 will be held at the rising point.

[0018] When a car decelerates from a speed exceeding the first specified vehicle speed of 70km/h, first Sliding rods 53f and 53g are at the position corresponding to the highest point of spoiler plate 4 and have a limit. Switch LS is activated. When the vehicle speed reaches 70 km/h, the first predetermined vehicle speed detection switch SW70 is turned on. In this state, the magnetic contactors MC upper and MC lower are not operating, so Relay R70 is energized and self-holding. Furthermore, when the vehicle speed reaches 60 km/h, the second predetermined vehicle speed detection switch SW60 is turned on. relay R60 is energized and self-holding, and the lower magnetic contactor MC is energized and self-holding. The motor 53a is held in the reverse direction. On the other hand, before the lower part of the electromagnetic contactor MC is energized, The limit switch LS is activated, and after being energized, it is the same as the magnetic contactor MC. Since there is an interlock between the bottom of the MC and the bottom of the MC, there is no electromagnetic contact in this state. The top of the MC remains demagnetized. Then, when the spoiler plate 4 descends and reaches the lowest point, it corresponds to the lowest point. The limit switch LS lower in the position is activated, relay R60, relay R70 and The self-holding under the magnetic contactor MC is released, each relay is demagnetized, and the motor 53a stops. Then, the first predetermined vehicle speed detection switch SW60 and the second predetermined The vehicle speed detection switch SW70 will wait for the next input, and the spoiler plate 4 will be held at the descending point.

[0019] Note that the present invention is not limited to the above-mentioned embodiments, and the gist of the present invention may be changed. Various modifications can be made as necessary within the scope.

[0020]

[Effect of the idea]

Since the present invention is configured as described above, the spoiler plate is moved when the required vehicle speed is reached. When the spoiler plate is not needed, the top surface of the spoiler plate should be raised smoothly and easily. Because it is flush, it reduces the increase in air resistance and provides sufficient reverse lift. You can enjoy the fruits. In addition, the pressure spring reduces the burden on the lifting/lowering drive means. However, since this means can be made compact, there is enough cargo space in the rear of the vehicle. This has the effect of providing an automobile rear spoiler that can secure storage space.

[Brief explanation of drawings]

FIG. 1 is a plan view showing the rear part of a vehicle body to which a rear spoiler according to an embodiment of the present invention is attached.

2 is a perspective view showing the spoiler plate of FIG. 1 at its lowest point; FIG.

3 is a perspective view showing the spoiler plate of FIG. 1 at its highest point; FIG.

FIG. 4 is a cross-sectional view taken along line A-A in FIG. 1 (lowest point).

FIG. 5 is a cross-sectional view taken along line A-A in FIG. 1 (the highest point).

FIG. 6 is a cross-sectional view (lowest point) taken along line D-D in FIG.

7 is a partially cutaway plan view of FIG. 6; FIG.

FIG. 8 is a cross-sectional view (lowest point) taken along the line B-B in FIG.

FIG. 9 is a cross-sectional view taken along line C-C in FIG.

FIG. 10 is an enlarged view showing a restraint part.

FIG. 11 is an operation explanatory diagram showing a state in which the bifold claw engages with the L-shaped protrusion.

FIG. 12 is a block diagram showing a control circuit of the lifting drive means.

FIG. 13 is an operation pattern diagram of the rear spoiler of the present invention.

FIG. 14 is a circuit diagram showing an example of vehicle speed/position discrimination means.

15 is a flowchart showing the operation according to the circuit diagram of FIG. 14. FIG.

[Explanation of symbols]

1 Vehicle body 2 Rear part 21 Rear top surface 3 Recess 4 Spoiler plate 42 Spoiler plate top surface 44 Spoiler plate support frame 5 Spoiler plate lifting means 51 Pressure spring 52 Restraint part 53 Lifting drive means 531 Output side tip of lifting drive means 532 Vehicle speed detection section 533 Spoiler plate position detector 534 Vehicle speed/position discrimination means 535 Power supply means 54 Restraint part driving means

Claims (2)

[Scope of utility model registration request] [Claim 1] A spoiler comprising a recess extending in the vehicle width direction in the rear part of the vehicle body, the recess being able to be opened and closed by a spoiler plate supported within the recess, and raising and lowering the spoiler plate within the recess. In the device provided with a plate elevating means, the spoiler plate falls down into the recess at the lowest point so that the top surface of the spoiler plate is flush with the top surface of the rear part, and the spoiler plate collapses at the highest point. The upper surface is supported so as to project obliquely at a predetermined angle with respect to the straight-travel direction of the vehicle, and the elevating means includes a pressing spring provided to push up the spoiler plate, and a pressure spring disposed to push up the spoiler plate; a restraining part provided to releasably restrain the spoiler plate against the pressing force of a pressing spring; a lifting drive means having an output side tip connected to the spoiler plate or the spoiler plate support frame; 1. A rear spoiler device for an automobile, comprising a restraint part drive means provided to release the restraint part in conjunction with the raising operation of the raising/lowering drive means and to restrain it in conjunction with the lowering operation. 2. The elevating means includes a pressing spring provided to push up the spoiler plate, and releasably restrains the spoiler plate against the pressing force of the pressing spring at the lowest point. a restraining part provided as shown in FIG. a vehicle speed detector provided to detect a first predetermined vehicle speed and a second predetermined vehicle speed lower than the first predetermined vehicle speed; , a spoiler plate position value detector provided to detect whether the spoiler plate is at the highest point or the lowest point, and in response to inputs from the vehicle speed detector and the position detector, the vehicle speed is determined. When the vehicle speed is at the second predetermined vehicle speed and the position is at the highest point, it is determined that the vehicle speed is at the second predetermined vehicle speed and the position is at the highest point. A vehicle speed/position discrimination means for discriminating that the vehicle is at an ascending point and outputting a descending command signal to the elevation drive means, and a power supply means for supplying current to the elevation drive means and the vehicle speed/position discrimination means. The rear spoiler device for an automobile according to claim 1, characterized in that: