JPH0314981B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a safety device for a mechanical parking system, particularly a vertical circulation type mechanical parking system.

[Prior art]

Conventionally, when using a circulating three-dimensional parking system, it was common for a car to move forward into the cage to enter the cage, and then move backward to exit the cage. Therefore, in order to prevent the danger of backing up and leaving the parking lot, it is necessary to install a turntable at the entrance of the multilevel parking system to change direction, which poses problems in terms of land use efficiency and economic efficiency. It was hot.

For this reason, in recent years it has been proposed to incorporate a turntable into the cage floor, but in order to prevent the turntable from rotating unnecessarily within the cage floor, the cage floor and turntable must be fixed or separated. This has the drawback that it requires a special locking device for locking, making the structure extremely complicated and expensive. Also, a parking device has been proposed in which a pivot device is installed in the pit to lift and rotate the entire floor of the cage, but it is difficult to easily engage and disengage the pivot device and the cage floor, or the cage frame and the cage floor. It is extremely difficult to perform this accurately and reliably without positional deviation with a similar configuration.

The present invention has been made in view of the above points, and is a machine that can extremely easily align the rotation device with respect to the landing position of the cage, and can extremely safely engage and disengage the cage floor and the cage frame. The purpose is to provide a type parking device.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing an embodiment of the device of the present invention;
FIG. 2 is a side view of FIG. 1, FIG. 3 is a perspective view of the cage frame, and FIG. 4 is a view taken along the - line in FIG.
In the figure, reference numeral 10 denotes a cage for mounting on a vehicle, in which square cage frames 11, 11 are located opposite each other, and their upper parts are connected by an upper connecting member 12 that is slightly longer than the entire length of the vehicle. Both ends of the lower part are connected by lower connecting members 13, 13 having approximately the same length as the entire length of the vehicle, and are configured in an inverted trapezoidal shape when viewed from the side. An engagement plate 1 is provided on the square bottom of the cage 10.
4 and 15 are each fixed on the diagonal. Reference numeral 16 denotes a bracket 14 fixed to the side piece 14a of the engagement plate 14, as shown in FIGS. 5a and 5b.
A pin 16 is provided vertically slidably through the pin 16, and a light shielding plate 16a is provided at the lower end of the pin 16. A spring 14c is provided between the bracket 14b and the light shielding plate 16a, and the upper part of the pin 16 is normally held by the spring force in a state where it projects upward from above the engagement plate 14, as shown in FIG. 5a. There is. Further, a recess 14d shown in FIG. 3 is provided on the upper surface of the engagement plate 14, and a protrusion (not shown) provided on the back surface of the pallet 5 is fitted into this recess 14d. Next, reference numeral 17 denotes a bent movable lock arm in which a bent portion 17a is rotatably provided on a side piece 15a of the engagement plate 15 about an axis 17b as shown in FIGS. 17 has a hook shape so that its upper end can be hooked onto an L-shaped lock holder 18 attached to the back surface of the pallet 5. Between the side piece 15a of the engagement plate 15 and the lower side of the movable lock arm 17, there is a A coil spring 19 is attached, and the spring pressure of the coil spring 19 normally maintains the upright state.

20 is at the vehicle entry position near the entrance/exit,
This is a lifting/lowering moving/swivel device installed in the pit 21 and is composed of a lifting/lowering device 30, a traversing device 40, and a turning device 50.

First, the lifting device 30 is constructed as shown in FIG. 9 by suspending both ends of the lifting frame 31 shown in FIG. This is a device for lifting and lowering an elevating frame 31 along a chain frame 34 equipped with a chain wheel 35 as shown, and a stand 61 shown in FIG. 61, rollers 62, 62', slide frame 63, pressing plate 34, and light projecting device 65
A safety device 60 consisting of a light receiving device 66 and a spring 67 is provided. The stands 61, 61 are vertically installed at the ends of the lifting frame 31, and rollers 62, 62' for positioning the cage frames 11, 11 in the AB direction are provided at the upper ends.
2' is the cage frame 1 as shown in FIG.
1 side piece 15 facing the center of the engagement plates 15, 14
e, 14e.
The slide frame 63 is installed horizontally so as to connect the left and right stands 61, and is held by a spring 67 provided at the end of the elevating frame 31, and is guided and supported so that it can move up and down along the left and right stands 61. ing. The slide frame 63 is provided with a pressure plate 64 and a photoelectric device PHT5 consisting of a light projecting device 65 and a light receiving device 66. When the elevating frame 31 is raised, the pressure plate 64
is arranged so that the lower side of the movable lock arm 17 of the cage frame 11 is pressed, and the light beam emitted from the light projecting device 65 and incident on the light receiving device 66 is blocked by the light shielding plate 16a of the cage frame 11. There is.

Next, the traversing device 40 mainly consists of a traversing frame 41 disposed on the lifting frame 31 shown in FIG. 12 and a traversing power cylinder 42 shown in FIG. 4, and a traversing guide as shown in FIG. roller 4
3, a lateral shift prevention roller 44, and an uplift prevention roller 45, it is provided on the elevating frame 31 so as to be freely traverseable. Further, in the center of this transverse frame 41, as shown in FIG.
The photoelectric device PHT is placed at a symmetrical position on a straight line passing through the center of the cage and in the direction of movement of the cage at the cage entrance
1 and PHT 2 are provided, and on the other hand, light shielding plates 6 and 7 are provided on the back side of the pallet 5 at symmetrical positions on a straight line passing through the center of the pallet and in the moving direction at the entrance/exit of the cage, as shown in FIG. As shown in FIG.
The PHT 2 is attached to face the light shielding plate 6.7.

Next, the swing device 50 mainly consists of a swing frame 52 and a swing drive device 53, which are rotatably disposed on the transverse frame 41 shown in FIG. 12 via a swing bearing 51, and as shown in FIG. The rotating frame 52 has a light shielding plate 53 at a symmetrical position on the center line.
54, and the transverse frame 41 is provided with a set of photoelectric devices PHT3, PHT4 at an angle of 90 degrees, and each time the rotating frame 52 rotates 90 degrees or 180 degrees, the photoelectric devices PHT3, PHT4 and the light shielding plate 5
3 or 54 are arranged to face each other.

Next, the operation of the device of the present invention will be explained.

First, when the cage equipped with pallet 5 stops at the lowest entrance/exit position, lift power cylinder 3
3 and 33, the elevating frame 31 is moved through the light shielding plates 6 and 7 provided on the back surface of the pallet 5.
It rises to a position where it is blocked by (the position indicated by the dashed-dotted line in Fig. 15). At this time, the photoelectric device PHT1 and
If both of the light beams of the PHT 2 are blocked by the light shielding plates 6 and 7, the center of the pallet 5 and the center of the rotating frame 52 are approximately aligned, but if the photoelectric device
If only one of the light beams of PHT1 or PHT2 is blocked by the light shielding plates 6 and 7, the direction of deviation in the left and right direction between the center of the pallet 5 and the center of the rotating frame 52 can be determined. The cylinder 42 connects the transverse frame 41 to the photoelectric device.
Both the light beams of PHT1 and PHT2 are protected by light shielding plates 6 and 7.
When the light is blocked, the transverse frame 41 stops and the center of rotation is aligned.
Note that the cage is normally controlled to stop at a position where either the photoelectric device PHT1 or PHT2 can face the light shielding plate 6 or 7.

Next, the lifting frame 31 is raised again by the lifting power cylinders 33, 33, and the stand 6
The rollers 62, 62' of No. 1 are guided and engaged with the side pieces 14e, 15e of the engagement plates 14, 15 of the cage frame 11 in the depth direction of the parking device (direction AB in FIG. 10).
The cage frame 11 is supported at a predetermined position, the center of the cage frame is aligned with the center of the rotating frame 52, and the elevating frame 31 is further raised to move the photoelectric device PHT of the slide frame 63 as shown in FIG. 5b.
5 and the light shielding plate 16a of the engagement plate 14 face each other to block the light from the projector 65, and the press plate 64 of the slide frame 63 contacts the lower end of the movable lock arm 17 of the engagement plate 15, and the coil spring 19 The movable lock arm 17 is rotated clockwise in FIG. 7 against the spring pressure to unlock the pallet 5 as shown in FIG. 11. Thereafter, the elevating frame 31 further rises until the upper limit switch LS1 shown in FIG. 9 is activated, and the revolving frame 52 lifts the pallet 5 and stops it. At this time, as shown in FIG. 5a, the engagement plate 14
The pin 16 protrudes above the engagement plate 14 due to the spring pressure of the spring 14C, and the opposition between the light shielding plate 16a and the photoelectric device PHT5 is released, and the light from the light projecting device 65 is incident on the light receiving device 66, and the pallet 5
It can be confirmed that the frame 52 is indeed lifted up by the rotating frame 52.

After that, if it is desired to rotate the rotating frame 52 by 90 degrees using the rotating drive device 53, the rotating frame 52 should be rotated by 180 degrees until the light shielding plate 53 of the rotating frame 52 in FIG. If it is desired to rotate the pallet 5, the pallet 5 is rotated until the light shielding plate 53 of the rotating frame 52 faces the photoelectric device PHT4 of the transverse frame 41. When the predetermined rotation is completed, the elevating frame 31 is lowered by the elevating power cylinders 33, 33, and the pallet 5 first moves the pin 16 of the engagement plate 14 to the spring 14 as shown in FIG.
Push down against the spring pressure of C, and then press down the photoelectric device PHT5 of the slide frame 63 and the light shielding plate 1 of the engagement plate 14.
6a face each other and block the light from the light projecting device 65, thereby confirming that the pallet 5 is reliably placed in the correct position on the cage frame 11, and the pressing plate 64 of the slide frame 63 is pressed against the engagement plate 15. As the pallet moves away from the lower side of the movable lock arm 17, the movable lock arm 17 rotates counterclockwise in FIG. 11 due to the spring pressure of the coil spring 19, thereby locking the pallet 5 as shown in FIG. and,
The elevating frame 31 descends and stops until the lower limit stop switch LS2 shown in FIG. 9 is activated.

This pallet movement operation may be performed at any time, such as when the vehicle enters the garage or when the vehicle leaves the garage, but the user may select this as appropriate.

〔Effect of the invention〕

As described above, according to the present invention, with a simple device configuration using a photoelectric device and a light-shielding plate, the center of rotation of the pallet can be accurately aligned with the center of rotation of the rotating device, and the pallet can be reliably loaded and unloaded while confirming the loading and unloading of the pallet. Therefore, even if the pallet turns 180 degrees, there is no fear that the pallet will shift from the cage, and even if it does shift, it will be immediately noticeable, making it possible to obtain an extremely safe mechanical parking device.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the device of the present invention;
2 is a side view of FIG. 1, FIG. 3 is a perspective view of the cage frame, FIG. 4 is a view taken along the - line in FIG. 2, and FIG. Figure 6 is P in Figure 1.
7 is a view taken along the - line in FIG. 6, FIG. 8 is a partial perspective view showing the elevating mechanism of the elevating device 30, FIG. 9 is a detailed view of the first part, and FIG. A perspective view of the safety device according to the device of the present invention, FIG. 11 is a state diagram of FIG. 7 when the elevating frame 31 is raised, FIG. 12 is a perspective view of the elevating movement and rotation device 20,
FIG. 13 shows the elevating frame 31 and the transverse frame 41.
14 and 15 are explanatory diagrams of the traverse movement operation, and FIG. 16 is an explanatory diagram of the turning operation. 11... Cage frame, 5... Palette, 21...
pit, 30...lifting device, 31...lifting frame, 50...swivel device, 14, 15...engaging plate,
16...pin, 16a...shading plate, PHT5...
Photoelectric device, 65... Light projecting device, 66... Light receiving device.

Claims (1)

[Scope of Claims] 1. The cage frame is provided with a pallet for mounting on a vehicle in a detachable manner, and the pit is provided with an elevating device equipped with a turning device, and by raising the elevating frame of the elevating device, Lift up the pallet;
In the device for rotating the pallet by the rotating device, the cage frame on which the pallet is placed is provided with an engagement plate, and the engagement plate has a pin provided with a light shielding plate at the lower end so as to be slidable in the vertical direction. the pin is held in such a state that its upper portion projects upwardly from the engagement plate when the pallet is not present on the engagement plate; the elevating frame is provided with a photoelectric device consisting of a light projecting device and a light receiving device; A safety device for a mechanical parking device, characterized in that when the pallet is placed on the engagement plate, the light from the light projecting device is blocked by the light blocking plate.