KR20040107642A - Parking auxiliary apparatus - Google Patents

Abstract

PURPOSE: A parking auxiliary device is provided to enable mounting without structural conversion or change of a vehicle and to increase durability through mechanical design working by simple structure. CONSTITUTION: A parking auxiliary device is mounted to a part of the rear bottom of a vehicle to enable the lifting and lowering or right and left movement of the vehicle. The parking auxiliary device comprises a supporting unit(A) of a six-bar linkage shape, a lifting and lowering unit(B), and a moving unit(C). In the supporting unit, right and left link frames(20,20') are rotatably connected to both ends of a fixed frame(10) attached to the bottom of the vehicle. The other ends of the link frames are fixed to one-sides of supporting plates(21,21') with two shafts. Roller frames(30) are rotatably connected to the front ends of the lower link frames installed symmetrically to the upper link frames. In the lifting and lowering unit, a spiral shaft(41) is connected to a first reduction motor(40) fixed to the left link frame, in series, and a cylinder(42) combined to the spiral shaft is fixed to the right link frame. The moving unit comprises roller shafts(51) passing through the roller frames; roller gears(52) attached to the roller shafts; and rollers(60). The roller shaft is directly connected to a second reduction motor(50) fixed to the roller frame.

Description

Parking Aids {PARKING AUXILIARY APPARATUS}

The present invention relates to a parking assist device for a vehicle, and more particularly, to a parking assist device that enables rotation of a vehicle by rotating a wheel opposite to a drive shaft from the ground in a state of stopping the vehicle to rotate left or right. .

Conventionally, many devices have been devised which allow one side or the whole of a vehicle wheel to be lifted from the ground in parallel to rotate or rotate the vehicle as an auxiliary wheel in order to facilitate parking in a single parking space. For example, the Republic of Korea Utility Model No. 1998-038765 "car parking aid" was introduced, the configuration is fixed to the bottom of the rear follower panel, the motor is installed on the shaft, the pinion is formed in the rear end The hydraulic means is installed so that the roller can be rotated at right angles to the piston, and the gear is fixed to the center of the roller so that it engages with the pinion. The hydraulic motor is installed in the trunk room.

In addition, as another conventional example, Korean Utility Model Utility Model No. 2000-0018314 "Parking assistance device of the car" was introduced, which is fixed to the hydraulic cylinder in the rear eccentric position of the car, the lower part is provided with an auxiliary wheel integrally In addition, by installing a drive motor on the lower side of the hydraulic cylinder to engage the auxiliary wheel and the drive motor with gears.

However, the above prior arts have the following problems in common.

First, since the lifting means of the roller or auxiliary wheel is composed of a hydraulic cylinder, it is necessary to install a separate hydraulic pump for operating it in addition to the parking assist device.

That is, in the case of the electronic design, since the hydraulic motor 12 is mounted inside the trunk room 11, the space of the trunk is reduced, so that the cargo loading space is inevitably reduced.

In addition, the latter case has been described with respect to the hydraulic pump 6, the installation position is not described in detail, the hydraulic pump 6 for operating the hydraulic cylinder 100 should be installed at any position.

Therefore, the conventional designs require an additional device other than the parking assistance device in common, which increases the weight of the vehicle, lowers fuel economy, consumes a load space, and is complicated in structure and installed by mounting a hydraulic device. Problems such as high cost are generated.

Second, there is a safety problem of the vehicle because the structure of the vehicle must be changed when the auxiliary device is mounted on the vehicle.

That is, in the electronic design, a space for mounting the hydraulic device, that is, the recessed portion 5 is required, so that the vehicle can be mounted only on the vehicle having the recessed portion 5 formed thereon. Since it must be modified or modified, it is subject to safety restrictions.

In addition, the latter design also needs to install the hydraulic pump 6 in a predetermined position is the same as the structural modification of the vehicle is required.

Third, the roller or the auxiliary wheel which is an auxiliary means of the wheel is formed in a circular shape has a problem that the ground area is small.

That is, conventional designs are commonly used to raise the rear axle by hydraulic pressure to rotate the vehicle body by a motor. In this case, when the rear wheel is separated from the ground, the rear axle should be kept parallel to the ground.

However, in the conventional designs, the center of gravity becomes very unstable because two front wheels and one auxiliary roller are grounded in a small area in the front of the vehicle, which causes eccentric loads depending on the position of the load or the occupant inside the vehicle. As a result, the rear wheel rising from the ground loses its center of gravity, causing a problem of falling, and this problem of eccentric loads is more dangerous on a steep road.

As described above, the conventional designs have various problems, and thus have not been put to practical use until now. As a condition for solving the above problems, first, the installation of the parking aid must be possible without structural modification or modification of the vehicle, and even after installation. There is a need for a parking assist device that can be used in any condition by avoiding limited conditions such as quadrature life and elimination of eccentric loads.

Accordingly, the present applicant has proposed a parking assistance device that solves the above problems and the technology has been introduced in the Republic of Korea Patent Publication No. 2003-17316, the technology satisfies the conditions that the runner assistance device as described above should have. .

However, in the above invention, the link bar 20 is configured as a trimming link structure in which the link bar 20 rotates around the link shaft 21, so that the vehicle moves to the left or right even when there is no rotation of the track during the elevating operation of the vehicle. There was a problem.

That is, when lifting the vehicle, the link bar 20 rotates relative to the vehicle to lower the track, and since the link bar rotates based on the track from the moment when the track contacts the ground, the vehicle is rotated by the rotation angle. There is a risk of causing an impulse with an object close to the vehicle as it moves up or down while moving.

Accordingly, the present invention has been created to solve the above problems, the first object of the present invention can be installed without structural modification or change of the vehicle, and increased durability through a mechanical design that operates in a simple structure It is to provide a parking assist device.

Still another object of the present invention is to provide a parking assist device capable of vertically raising and lowering the vehicle while improving the grip force to sufficiently cope with the eccentric load of the vehicle.

The first object is achieved by performing a rotation operation of a roller and a link up / down operation as a motor controlled from a remote control (REMOTE CONTROL) that is applied from a power source of a battery already attached to a vehicle and operated in a driver's seat.

In addition, the second object is achieved by installing a plurality of rollers in order to increase the ground area, and by configuring the frame of the six-section link form so that the rollers are vertically raised and lowered.

1 is a perspective view and a partial enlarged enlarged view of the parking assisting apparatus according to the first embodiment of the present invention.

2a and 2b is an operational state diagram of the parking assisting apparatus according to the first embodiment of the present invention.

3A and 3B are a plan view, a front view and an operating state diagram of the parking assisting apparatus according to the second embodiment of the present invention.

4A and 4B are diagrams illustrating a state in which the parking assisting apparatus according to the second embodiment of the present invention is attached to a vehicle.

5 is a schematic view showing a state in which a vehicle is parked by the parking assisting apparatus according to the present invention.

6a and 6b is a state of use of the parking assisting apparatus according to the present invention.

7 is a partial plan view and a front view of the parking assisting apparatus according to the third embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

A: Supporting means

10: fixed frame 11: hinge plate

12, 12 ′: link bar 20, 20 ′: link frame

21, 21 ′: Support plate 23, 23 ′: Frame gear

25, 25 ′: auxiliary link 26, 26 ′: auxiliary support plate

30: roller frame

B: getting on and off means

40: first deceleration motor 41: spiral shaft

42: cylinder

C: means of transportation

50, 70: second reduction motor 51, 73: roller shaft

52: roller gear 53: chain

60, 80: roller 71: motor drive shaft

72: worm gear device

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in more detail.

1 is an enlarged perspective view and partial cutaway enlarged view of a parking assisting apparatus according to a first embodiment of the present invention, in which a portion of the support plate 21 is cut out to help understand the configuration.

The support means (A) of the present invention is a fixed frame 10, the link frame 20, the roller frame 30 is in the form of a six-section link, more specifically as shown in the fixed frame 10 Form a substantially "H" shape on the plane, and the left and right pair of link frames 20, 20 'are connected to each other in a rotatable state, and the link frame 20, 20' ) The other end is fixed to the support plate 21 having two shafts, and another link frame is installed symmetrically downward, and the lower end of the link frame is connected to the roller frame 30 so as to be rotatable. It consists of.

Hereinafter, for convenience of description, the concept of "upward" and "downward", "left" and "right", "front" and "rear" will be omitted based on the drawings.

As shown in the drawing, the connecting portions of the left and right upper link frames 20 and 21 'and the lower link frames 20 and 21' are respectively connected to two axes in the support plates 21 and 21 '. 23 is formed and engaged.

The frame gear 23 keeps the fixed frame 10 and the roller frame 30 in parallel by maintaining a constant ratio when the upper / lower link frame changes in angle and becomes wide open or narrow.

In addition, the link bar 12 (12 ′) may be configured as another support device for preventing the twisting of the front and rear fixed frame 10 and the roller frame 30 of the support means (A).

The left link bar 12 is rotatably fixed to a predetermined position of the left upper link frame 20 so as to be rotatably fixed to one side of the hinge plate 11 positioned in the center of the fixed frame 10, and the right link bar 12 ′) Is rotatably fixed at a predetermined position of the right upper link frame 20 ′ and is rotatably fixed to the other side of the hinge plate 11.

On the other hand, the elevating means (B) is a first reduction motor 40 fixed to the left link frame 20, a spiral shaft 41 connected in series with the first reduction motor, and this spiral shaft 41 And the combined cylinder 42 is fixed to the right link frame 20 ', and the first reduction motor 40 is electrically connected with the second reduction motor 50 to be described later by the battery power of the vehicle. It is driven, and this electric circuit configuration is satisfied by conventional means, so a detailed description thereof is omitted.

The moving means C for rotating the roller 60 is connected to the second reduction motor 50 fixed to the roller frame 30 and the second reduction motor in series and penetrates the pair of roller frames. The roller shaft 51 and the roller gear 52 and the roller 60 which were attached to this roller shaft 51 are comprised.

The roller 60 may be provided in at least two or more numbers according to the size or weight of the vehicle, preferably made of a rubber material, and the surface of the roller 60, such as the surface of the snow tire (SNOW TIRE) of the vehicle (Not shown) can be formed.

In addition, the chain 53 can be wound around the roller gear 52 provided on the side of the roller so that the driving force of the second reduction motor 50 can be simultaneously transmitted to the roller 60 provided with two or more. If three (60) are installed, the chain 53 is attached to the roller gears in the front and rear of the roller located at the center and the roller gears 52 located at the left and right thereof, and the rollers are attached in accordance with the weight of the vehicle. Even if five are installed, the driving force of the motor can be transmitted to all the rollers.

The control of the elevating means (B) and the moving means (C) is designed to be operated by a remote control installed in the vehicle driver's seat, the power for driving the power to be supplied from a battery mounted on the vehicle, a preferred embodiment The lowering means switch and the moving means switch are configured separately.

That is, a UP / DOWN switch for driving the lifting means and a LEFT / RIGHT switch for driving the moving means are respectively configured.

Figures 2a and 2b is an operating state diagram of the parking assisting apparatus according to an embodiment of the present invention, with reference to Figures 2a and 2b the operation state of the elevating and moving means of the support means is more concrete.

The increase and decrease of the vertical distance of the supporting means (A) is made by the elevating means (B).

That is, when the driving force of the first reduction motor 40 rotates the spiral shaft 41, the spiral shaft 41 is introduced or discharged into the cylinder 42, so that the left link frame 20, which is the first reduction motor fixing part, is rotated. The other end of the right link frame 20 'distance is narrowed or widened, wherein each link frame is rotated relative to the roller frame 30 fixed axis.

Since this operation is operated symmetrically from the left / right side, the fixed frame 10 and the roller frame 30 is to move away or narrow while maintaining parallel.

In addition, although the front end of the 1st reduction motor 40 and the cylinder 42 of the elevating means B was attached to the lower link frame in the figure, it can also be installed in an upper link frame, and it is not only a screwed structure by a spiral, but also a hydraulic pressure. Cylinders can also be used.

When the spiral shaft 41 and the cylinder 42 of the elevating means B are constituted by a hydraulic cylinder, noise and vibration by the motor are reduced, and the bearing force increases when the vehicle is lifted, but there is a safety advantage. Since it will increase the price, it can be appropriately selected according to the quality of the parking aid.

On the other hand, when the roller of the support means (A) is in contact with the ground as shown in FIG.

That is, the driving of the second reduction motor 50 rotates the roller shaft 51 connected in series with it, and the rotational force of the roller shaft 51 drives the other roller shaft 51 through the roller gear 52. A plurality of rollers 60 are rotated at the same time, the rotation medium is a chain (53).

However, the movement means (C) may be via the gear (GEAR) as in the other embodiments described later.

3A and 3B are plan, front and operating state diagrams of the parking assisting apparatus according to the second embodiment of the present invention. In particular, the supporting means A is changed in the configuration of the first embodiment, and other lifting means And since the movement means is the same as the respective means of the first embodiment, detailed drawings thereof are omitted.

Referring to FIG. 3, the left and right link frames 20 and 20 ′ rotatably connected to the fixed frame 10 and the roller frame 30 form an almost straight state when the lifting operation of the lifting means is completed. It can be seen that the distance between 60 and the ground is sufficiently secured.

To this end, one side of the auxiliary links 25 and 25 ', which are vertically symmetrical to predetermined portions of the upper and lower link frames 20 and 20', is rotatably fixed, and each of the auxiliary links 25 and 25 'is fixed. The other end is fixed to the auxiliary support plate 26 (26 ') which forms two shafts up and down, and these auxiliary link and the auxiliary support plate are linked frame 20 (20') at the completion of the lifting operation of the lifting means as shown in FIG. Design the width appropriately so that it can be inserted inside.

In addition, a link gear may be formed inside the auxiliary support plate and the support plate, that is, the connecting portion of the upper and lower auxiliary links and the upper and lower link frames as in the first embodiment, and the lifting means B is illustrated in FIG. 3B. As described above, the helical shaft and the support plates 21 (21 ') 26 (26') may be screwed through the left and right support plates 21 (21 ') and the auxiliary support plates 26 (26').

According to the configuration of the second embodiment, in order to switch from the state of FIG. 3A to the state of FIG. 3B, as shown in FIG. 3A, the distance between the axes of the auxiliary support plate 26 is greater than the distance c between the supporting plates 21. In addition, it should be noted that the auxiliary link interferes with the rotation of the link frame when the distance between the two axes is the same or the distance between the "b" section is smaller than the "c" section distance.

4A and 4B are diagrams illustrating a state in which a parking assisting device according to the present invention is attached to a vehicle, and a plurality of bracket fixing parts 13 shown in FIG. 3A are formed in the fixing frame 10, and the bracket fixing parts 13 are shown. Is fixed to a bracket 92 that is properly fixed according to the shape of the bottom of the vehicle, the bracket 92 is a body frame of the vehicle, the auxiliary tire holder 91, such as a place that does not cause fatal defects in the structure and safety of the vehicle If it can be designed according to the model.

When fixed in this way, the roller frame 30 can be raised or lowered relative to the vehicle to lift or lower the vehicle, and simply remove the bolts installed on the fixing bracket 13, it is possible to simply remove the parking assist device. .

With the parking assist device mounted on the vehicle, the roller frame 30 ascends based on the fixed frame 10 to maintain a predetermined distance from the ground, as shown in FIG. When parking is required after the vehicle stops, the roller frame 30 is lowered by using the elevating means B to raise the wheel 90 of the vehicle from the ground as shown in FIG. 4B, and then the moving means C is moved. By moving to drive the roller 60 in the desired direction to help the parking in a narrow space without the driving of the vehicle wheel 90 as shown in FIG.

The present invention is also useful when replacing the rear wheel 90 of the vehicle, when the rear wheel 90 of the vehicle is worn or punctured (PUNCTURE), usually to lift the vehicle by a mechanism such as a jack (JACK) for automobiles However, if the parking aid of the present invention is equipped, such a labor can be saved.

That is, when the rear axle wheel 90 is to be replaced, when the roller 60 is lowered by operating the first reduction motor 40, the vehicle is lifted from the ground, so that the wheel 90 can be replaced without using a jack separately. This is especially useful for users who have no experience with women or jacks.

6A and 6B are diagrams illustrating a state of use of the parking assisting apparatus according to an embodiment of the present invention. FIG. 6A shows a ground area of the roller 60, and FIG. 6B shows an extreme situation, that is, the roller on a sloped road. The left and right movement state is shown.

As described above, in the prior art, since the ground area is very unstable, when the load is eccentric, the use of the parking assist device has been discussed in the related art.

However, according to the present invention, since the ground area of the roller 60 supporting one side of the vehicle is enlarged as shown in FIG. 6A, even if an eccentric load is generated on the left and right sides of the vehicle, rotational movement is possible.

In this expansion of the ground area, as shown in FIG. 6B, even if an eccentric load is generated due to non-development road surface or loading bias, one wheel 90 does not contact the ground, and the rear wheel shaft is parallel to the ground.

7 is a partial plan view and a front view of a parking assisting apparatus according to a third embodiment of the present invention, the third embodiment showing another embodiment of the moving means (C), which constitutes the first embodiment and the second embodiment And may be combined.

Referring to FIG. 7, the roller 80 is fixed to both ends of the roller shaft 73 passing through the pair of roller frames 30, and a worm gear 72 is formed at the center of the roller shaft 73. 2 is connected to the reduction motor 70.

As described above, two or more rollers 80 may be installed depending on the weight of the vehicle on which the parking assist device is to be mounted. In this case, the worm gear 72 corresponds to the number of rollers 80.

Referring to the force transmission process in this configuration, the drive of the second reduction motor 70 is transmitted to the motor drive shaft 71, the drive is driven from the worm gear 72 installed in series with the motor drive shaft 71, the roller shaft ( 73 to rotate the plurality of rollers 80 at the same time.

In addition, although not shown, the driving method by the gear is not limited to the embodiment of FIG. 7, and instead of the worm gear, a bevel gear or a helical gear may be used. Any device may be selected as long as it is a mechanical device capable of transmitting the driving force of the reduction motor 70 at right angles to the roller shaft 73. In this case, structural stability and durability, supply and demand of materials, production cost, and the like may be selected. It must be taken into account together.

In the configuration as shown in FIG. 7, even if the number of rollers 60 increases, it is possible to configure a gear device corresponding to the number of the rollers 60, and when a plurality of rollers are driven through the gear device, the load of the vehicle is increased. Even if there is an increase or uneven ground, the rollers are smoothly driven and more precise control is possible.

As described above, the parking assisting device according to the present invention can be installed without structural modification or modification of a vehicle because a control device such as a hydraulic pump is excluded, and manufacturing cost can be reduced and supplied to a consumer at a low price. In addition, since the weight of the parking assist device is not large, fuel economy can be prevented from being lowered. Also, the grounding area on the left and right sides of the vehicle is increased, and the eccentric loads due to tire replacement, load bias, position of the occupant, etc. It is a very excellent invention that can generalize the parking assistance device, which has not been practically carried out by being able to lift and lower vertically while overcoming the eccentric load without limiting extreme conditions such as photographic road.

Claims (9)

In the parking assist device which is mounted to any part of the rear bottom of the vehicle, and configured to move the vehicle up and down and move left and right, A pair of right and left link frames 20 and 20 'are connected to both ends of the fixed frame 10 attached to the bottom of the vehicle, and the left and right ends of the link frames 20 and 20' are connected to two axes. Support means (A) of the six-section link type is fixed to one axis of the supporting plate (21) (21 ') having a roller frame 30 is rotatably connected to the tip of the lower link frame installed symmetrically with the upper link frame, The spiral shaft 41 connected in series to the first deceleration motor 40 fixed to the left link frame 20, and the cylinder 42 screwed with the spiral shaft 41 are connected to the right link frame 20 ′. Fixed lifting means (B), The roller shaft 51 directly connected to the second deceleration motor 50 fixed to the roller frame 30 and penetrating through the pair of roller frames, and the roller gear 52 and the roller which are attached to the roller shaft 51. Parking assistance device, characterized in that the combination of the moving means (60) consisting of (60). The method according to claim 1, One side of the upper link frame and the lower link frame of the support means (A) and symmetrical auxiliary links 25 and 25 'are symmetrically connected to predetermined positions, and each other end of the auxiliary link has two axes. Parking assistance device, characterized in that rotatably fixed to the axis of the support plate (26) (26 '), the lifting means (B) is screwed with the spiral shaft (41) through the support plate and the auxiliary support plate. The method according to claim 1 or 2, The first and second deceleration motors (40) and the second deceleration motors (50) of the elevating means (B) and the moving means (C), respectively, characterized in that driven by the battery power of the vehicle. The method according to claim 3, The upper link frame 20 (21 ') and the lower link frame 20 (21') connected in the supporting plate 21 (21 ') and the upper auxiliary link and the lower auxiliary link connected in the auxiliary support plate. Parking aids, characterized in that the frame gears 23 are respectively fitted to each other. The method according to claim 4, One end of each of the link bars 12 and 12 'is rotatably connected to the left and right upper link frames 20 and 20', respectively, and a hinge plate 11 having two axes is formed at the center of the fixed frame. And the other end of the left link bar 12 and the other end of the right link bar 12 'are rotatably connected to each axis of the hinge plate, respectively. The method according to claim 1, Parking aid device, characterized in that the spiral shaft and the cylinder of the elevating means (B) may be composed of a hydraulic cylinder operated by hydraulic pressure. The method according to claim 1 or 2, Roller 60 of the moving means (C) is made of a rubber material, but the slip groove is formed on the surface thereof, The at least two rollers are provided with roller gears 52 provided on each side of the rollers 60 so as to interlock with the chain 53, characterized in that the parking aid. The method according to claim 7, The moving means (C) is fixed to the roller 80 at both ends of the plurality of roller shaft (73) through a pair of roller frame 30, the motor drive shaft 71 directly connected to the second reduction motor (70) Is fixed at right angles across the center of the roller shaft, parking assist device, characterized in that the motor drive shaft 71 and the roller shaft 73 is meshed with a gear (GEAR) device. The method according to claim 8, The gear assist device, characterized in that selected from the gears of the worm (WORM) (70), bevel (BEVEL) (80), helical (HELICAL) group.