JPH04216780A - Synchronizing device for use in parking equipment for parking of car - Google Patents

Abstract

PURPOSE: To prevent occurrence of torsion with both platforms by pivotally coupling a link device having torsional rigidity between upper and lower platforms. CONSTITUTION: Platforms 4 and 7 with a stay 3 hinged between them are born with a carriage 8 to allow vertical movement along a column 9 by a hydraulic cylinder 10. A torsion tube 20 with a sufficient torsional rigidity is born for fixed position, tightly coupled to each link 19 at its end part. A link 1 is connected to a link 19 through a joint 21, which is hinged to a connection part 2. Against the occurrence of torsion of both platforms due to uneven carry to the platform 4 or 7 or uneven load at the hydraulic cylinder 10, the links 1 and 19 and the torsion tube 20 act synchronously so that both links 19 take positions almost parallel to each other on both sides of the platform, causing a force, which keeps a coupling part 2 at the same level, act on a platform 7 through the stay 3.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synchronizing device for use in an automobile parking system for parking automobiles on two platforms one above the other, and for selectively connecting said platforms to a common automobile approach path. the platforms are connected via stays and are movable together; the synchronizer comprises a linkage;
The linkage device is arranged at the end of the torsionally rigid element and acts on both sides of one of the platforms.

0002

BACKGROUND OF THE INVENTION A synchronizing device of this type is known, for example, from DE 30 26 746 A1. This known synchronizer essentially consists of a fixedly mounted torsionally rigid tube, which tubes are each provided with a link or lever arm at its end. The first link at each end of the tube is connected via a joint to another link which itself also pivots to one of the platforms.

Vehicle parking systems for parking vehicles on two platforms one above the other generally have one stroke drive, for example a pneumatic cylinder, on each side of the platform. This pneumatic cylinder acts, for example, on one of the two platforms, for example on the upper platform. This upper platform is also connected via stays, links or similar means to the other platform, ie the lower platform. If during the lifting process one also attempts to obtain an inclination of the platforms, generally to improve passability, this usually results in a difference in the movement of each side of each platform. This occurs because the loads on the platform are different, for example because the vehicle is not exactly centered. Other effects can also result in non-uniform movement of the platform. For example, the above-mentioned disadvantages arise if only one-sided resistance occurs or if the loading of the lifting device is different for some reason.

[0004] With the synchronizer it is sought to be achieved that both working parts of the synchronizer on one platform assume approximately equal height positions, whereby deformations and torsions of the platform are reduced. Synchronization on one platform also causes synchronization on the other platform.

In the known arrangement, a synchronizer acts on the platform near the end of the platform. This arrangement is based on the fact that at the platform ends the difference in position on both sides of the platform to be compensated for is greatest and therefore the synchronizer has the greatest effect. For example, the point of action of the synchronizer located close to the hydraulic cylinder can certainly bring about that the different lifting heights of said hydraulic cylinder are compensated, but this does not affect the torsion of the platform. It is not possible.

[0006]

SUMMARY OF THE INVENTION It is an object of the invention to improve a synchronizer of the type mentioned at the outset in such a way that the action of the synchronizer on both platforms is increased and the synchronization is improved. It is to provide.

[0007]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention provides a structure in which the link of the synchronizer acts on the joint of the stay on one of the platforms.

[0008]

According to the invention, firstly it is achieved that the special working parts of the synchronizer on one platform are saved. The synchronizer according to the invention acts on the same points where the stays already act, which simplifies manufacturing.

[0009] A great advantage of the invention lies, inter alia, in that the synchronization device thus also operates much more effectively on the other platform than was hitherto possible. Since the synchronization device according to the invention does not act only on the platform, but also on the stay, a synchronization is forced directly onto the other platform via this stay. Deformation of the platform between the working part of the synchronizer and the connection part of the stay, which hitherto would have affected the synchronization of the other platform, is eliminated.

[0010] In general, according to the invention, a synchronizer is used which consists of two link pairs, as in the known configuration mentioned at the outset. However, the Federal Republic of Germany Patent Application Publication No. 3
It is also possible to use synchronizers with only one link and rail guide, as described in document 048217. When using a synchronizer with two link pairs, the torsionally rigid tubes are placed in a fixed position, and the platform coupling stays are also placed close to the platform ends to reduce the distance to the torsion tubes. It is recommended to set up the structure as follows. Even if relatively long links are required in the synchronization device according to the invention, this does not become a disadvantage. This is because the structural effort required for this is not a big problem.

The invention can also be used, for example, in stays that are rigidly connected to both platforms or to one of the platforms. However, the invention is also particularly useful if the stay is pivotally connected to the platform in question. In this case, the stay joint also forms the joint for the link of the synchronizer.

A further advantage of the device according to the invention is obtained if both connections of the stays on both platforms are selectively adapted to serve as pivot points for one link of the synchronizer. This makes it possible to achieve that the synchronizer is either acting on the upper platform or acting on the lower platform, depending on spatial requirements and desires. An undesirable situation sometimes arises when the synchronizer is acting on the upper platform. This is because the link may get in the way when the vehicle approaches the lower platform located in the entry position.

[0013] In the other case, the additional built-in bodies make it difficult to connect the link to the underlying platform. With the arrangement of the synchronizer according to the invention, it is possible to choose one case or the other even at the time of installation, without additional costs.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described in detail below with reference to the drawings.

In the embodiment shown, both platforms 4, 7 are supported on a carriage 8, which is movable vertically along a column 9. A hydraulic cylinder 10 is provided for moving the carriage 8. At the lower end of the carriage 8,
The platform 7 is supported on a joint 11, while the upper end of the carriage 8 and the upper end of the column 9 are each provided with a recess 12 or 13. This notch is located on pin 1 depending on the position of both platforms.
Accommodates 4. In this case, in the lowered position, the pin 14 provided on the upper platform 4 is accommodated in the cutout 13 provided in the column 9, and in the raised position said pin 14 is provided in the carriage 8. It is accommodated in the cutout 12.

The stop 15 and the tensile member 16 limit the movement possibilities of the lower platform and thus also of the upper platform. In the illustrated embodiment, the column 9 together with the carriage 8 is arranged close to the end 17 of said platform 4 or 7 opposite the entrance 18, so that, depending on the center of gravity of the platform loaded with motor vehicles, Or depending on the center of gravity position of the platform that is not loaded with cars,
Since a torque always acts on the platform support 11 or 14 in a clockwise direction, the stopper 15 or the tensile member 16 becomes effective.

Both platforms 7 and 4 are connected to each other by a stay 3, and in this case, platform 4
The upper joint of the stay in the platform 7 is designated by 2 and the lower joint of the stay in platform 7 is designated by 5. In the illustrated embodiment,
The stay 3 is configured as a link, and the connecting portion 2
Or 5 is a joint. In another construction of the vehicle parking device in which the synchronization device according to the invention can be used:
The stay may be rigidly connected to one or both platforms.

It goes without saying that both the column device and the stay 3 are arranged on both sides of the platform 4 or 7, respectively.

The synchronizer essentially has a fixedly mounted torsion tube 20, which is rigidly connected at its end to one link 19 in each case. If the torsion tube 20 has sufficient torsional rigidity, both links 19 will almost always assume a position parallel to each other on either side of the platform. A link 1 is connected to the link 19 via a joint 21, which in the illustrated embodiment is pivoted to a connecting part 2. Said link 1 is only subjected to tensile or pressing loads and not to bending loads.

[0020] Due to uneven loading on the platforms 4 or 7 or uneven loading of the hydraulic cylinders 10 on both sides of the platform, or due to other reasons, the left and right sides of both platforms are adjusted to be parallel. If the two platforms become twisted, or if for the same reason one side of the platform is raised somewhat more than the other side of the platform, then the said components are moved in a direction to counter this. That is, the synchronizing device consisting of link 1, link 19 and torsion tube 20 acts to keep the joints 2 at the same height. This effect is also produced on the lower platform 7 via the stays 3 on both sides of the platform.

In the drawing, links 1, 22 are indicated by dashed lines 6, 22.
19 alternative arrangements are shown, and such configurations can also be used without problem in the present invention. In this case, the link 1 is connected to the lower connecting part 5 of the stay 3 on the platform 7.

As can be seen from FIG. 2, in the raised position the synchronizer with the links 1, 19 can possibly impede the access of the lower platform into the traffic position. If, on the other hand, the above-mentioned arrangement is used, as indicated by the dash-dotted lines 6 or 22, the links always remain below the lower platform 7, but in this case of course this location Sufficient space for link movement is required.

[Brief explanation of the drawing]

1 shows a side view of a motor vehicle parking device with a synchronization device according to the invention in a lowered position with both platforms; FIG.

2 shows a side view of the vehicle parking device shown in FIG. 1 with both platforms in a raised position; FIG.

[Explanation of symbols]

1 Link 2 Joint part 3 Stay 4 Platform 5 Joint part 6 One-dot chain line 7 Platform 8 Carriage 9 Column 10 Hydraulic cylinder 11 Joint 12,13 Notch 14 pin 15 Stopper 16 Tensile member 17 End 18 Entrance 19 Link 20 Twisted pipe 21 Joint 22 One-dot chain line

Claims (3)

[Claims] 1. A synchronizing device for use in a motor vehicle parking system for parking a motor vehicle on two platforms one above the other, wherein the platform is provided with a stand for selectively connecting the platform to a common motor vehicle access path. are connected to each other and are movable together, said synchronizer consisting of a linkage arranged at the end of the torsionally rigid element, one of the two platforms The synchronizer link (
1) is the stay (3) on one platform (4).
) A synchronizing device for use in a car parking device for parking a car, characterized in that it acts on the coupling part (2) of the motor vehicle. Claim 2: The stay (3) is pivotally connected to the relevant platform, and the stay joint is connected to the link (1).
2. A synchronizer according to claim 1, wherein the synchronizer forms a joint of: ). 3. Both connecting parts (2, 5) of the stay (3) on both platforms (4, 7) are adapted to selectively act as pivot joints for one link (1) of the synchronizer. , A synchronization device according to claim 1 or 2.