JPH0786280B2 - Left-right synchronization mechanism for pallets in a two-tiered parking facility - Google Patents

Description

The present invention relates to a pallet left-right synchronizing mechanism in a two-tier parking facility, and more specifically, for storing a vehicle in an upper parking position and lowering it to a lower parking position. The present invention relates to a left-right synchronizing mechanism that prevents the pallet used for the tilting.

[Conventional technology]

In recent years, when it is desired to park two vehicles in a general house, a three-dimensional parking lot having an upper and lower two-tier structure has been introduced. As an example, the applicant of the present invention is Japanese Patent Application No. 2-20
There is a two-tiered parking facility disclosed in No. 4709. this is,
As shown in FIGS. 8 and 9, a pallet lifting mechanism 15 having drive sprockets 14R and 14L mounted on the rear sides of both sides of the pallet 7 on which the vehicle 8 is mounted, and a drive chain 16 meshing with the sprocket ing.

One end 16a (see FIG. 9) of the drive chain 16 is fixed to the lower side of the left beam 6L connecting the front column 4L and the rear column 5L shown in FIG. 8, and the other end 16b is connected to the right beam 6R. It is fixed to the lower side of. The drive chain 16 traces from the fixed one end 16a to the left drive sprocket 14L, the right drive sprocket 14R, the sprocket 18 attached to the output shaft of the motor 17, and forms a slack portion 16c at the other end 16b. It is connected. The slack portion 16c has a sufficient length so that the pallet 7 can be fed out when the pallet 7 is lowered.

When the motor 17 rotates, the pallet 7 of the pallet lifting device 15 is lifted and lowered by the movement of the drive chain 16 meshed with the two drive sprockets 14L and 14R. For example, when the pallet 7 descends, the sprocket 18 is rotated in the direction to reduce the slack 16c, and the drive chain 16 moves from the drive sprocket 14R to the drive sprocket 14L.

At that time, in the unlikely event that the drive sprocket 14L does not rotate, while the pallet 7 continues to descend on the right side,
The pallet 7 stops descending on the left side, and the pallet 7 tilts downward to the right. If the drive sprocket 14R stops rotating, the sprocket 18 and drive sprocket
Drive chain that extends from the slack part 16c between 14R
16 accumulates or the drive chain 16 comes off from the drive sprocket 14R.

On the other hand, when the pallet 7 rises, the sprocket 18 rotates in the direction of increasing the slack portion 16c, and the drive chain 16 moves from the drive sprocket 14L to the drive sprocket 14R.
At this time, if the drive sprocket 14L stops rotating,
The pallet 7 stops rising on the left side, and the pallet 7 tilts upward to the right. When the drive sprocket 14R stops rotating, the pallet 7 stops rising and the drive chain 16 breaks.

In order to prevent the pallet 7 from tilting to the left and right and maintain the pallet 7 in a horizontal posture while moving up and down, the front and rear sprockets 20 and 21 are attached to the mounting member 19 protruding from the left and right rear end sides of the pallet 7. , 19 (see FIGS. 8 and 10).

For the left and right sprockets 20, 20, the upper end is the right rear pillar 5R
In the upper part of the, the balance chain 22 shown by the alternate long and short dash line, whose lower end is fixed to the lower part of the left rear pillar 5L, is stretched.The upper ends of the left and right sprocket wheels 21, 21 are located above the left rear pillar 5L. A balance chain 23, whose lower end is fixed to the lower part of the right rear pillar 5R, indicated by a chain double-dashed line, is stretched and laid on each other.

Therefore, the sprocket 18 and the drive sprockets 14,14
Four sprockets 20,20,21,2 mounted on the pallet 7 that moves up and down by the movement of the drive chain 16 meshed with the
The rotation of 1 is limited by the stretched balance chains 22 and 23, and the pallet 7 can maintain a horizontal posture. Even if the drive sprocket 14L or the drive sprocket 14R stops rotating and the pallet 7 stops unexpectedly, the horizontal posture of the pallet 7 is maintained and the vehicle 8 is prevented from tilting or dropping. Is considered to be done.

[Problems to be Solved by the Invention]

While the upper and lower ends of the balance chain in the above-mentioned two-stage parking facility are fixed to the rear pillar side, the four sprockets that mesh with it are attached to the pallet side, etc.
There is a problem that the structure becomes complicated and maintenance is troublesome. Furthermore, there is a problem that the appearance and design are impaired, such as the appearance of four sprockets and a stretched balance chain from the rear of the two-tiered parking facility.

The present invention has been made in view of the above-mentioned problems, and an object thereof is to exert a function as a balance mechanism provided on a pallet in a two-tiered parking facility, and to consolidate the mounting of the sprockets and chains constituting the pallet side. The present invention is to provide a pallet left-right synchronizing mechanism for a two-tier parking facility, which simplifies the structure, reduces the labor required for maintenance, and improves the appearance.

[Means for Solving the Problems]

The present invention operates a pallet elevating mechanism composed of a drive sprocket and a drive chain by a drive means to store a vehicle mounted on a pallet that ascends and descends in a support structure at an upper parking position and also to an upper parking position. It is applied to a two-tiered parking facility that allows the vehicle to be taken out from the vehicle to the lower parking position.

The characteristic feature of the pallet 7 is that, referring to FIGS. 1 to 3, torque shafts 24, 24 extending in the front-rear direction are attached to drive sprockets 14, 14 attached to the left and right sides of the pallet 7, respectively. At one end of the torque shafts 24, 24 located on both the left and right sides, tuning sprocket 27, 27 for maintaining the pallet 7 being raised and lowered in a horizontal posture is provided, and both tuning sprocket 27, 27 have an endless shape. The tuning chain 28 is hung.

[Action]

When the vehicle 8 is placed on the pallet 7 and the pallet elevating mechanism 15 is operated by the drive means 17, the drive chain 16 raises the pallet 7. At this time, the torque shafts 24, 24 mounted on the rotating drive sprockets 14, 14
Rotate in the same direction, and the torque shaft is
The tuning sprockets 27, 27 mounted on 24, 24 also rotate.

Tuning chain 2 hung on tuning sprocket 27, 27
8 moves while circulating both tuning sprockets 27, 27,
Drive chain 16 and drive sprockets 14, 14 on the move
The operation of is synchronized and the pallet 7 is maintained in a horizontal posture. As a result, the vehicle 8 mounted on the pallet 7 is smoothly stored without inclining to the left or right.

When one of the drive sprockets 14 and 14 stops rotating while the pallet 7 is being raised, the rotation of one torque shaft 24 attached to the drive sprocket 14 stops and one of the torque shafts 24 attached to the torque shaft 24 stops. The rotation of the tuning sprocket 27 is also stopped at the same time. At the stop, the tuning chain 28 also stops moving, is restrained by the tuning chain 28, the rotation of the other tuning sprocket 27 and the other driving sprocket 14 is stopped, and the raising of the pallet 7 is immediately interrupted. Therefore, it is possible to prevent the pallet 7 from inclining to the left or right as in the case where the tuning sprocket 27 is not provided.

Similarly, when the vehicle 8 is lowered, if one drive sprocket 14 is locked for some reason, the other drive sprocket 14 is stopped via the tuning chain 28, and the posture change in the pallet 7 is prevented. It

〔The invention's effect〕

According to the present invention, the pallet being lifted and lowered can be constantly maintained in a horizontal posture by the operation of the tuning sprocket and the tuning chain. Even when the drive sprocket does not rotate and the lifting and lowering of the pallet is stopped, the pallet maintains its horizontal posture and is stopped by the operation of the synchronizing sprocket and the synchronizing chain. As a result, tilting or dropping of the vehicle mounted on the pallet is avoided. At that time, the drive chain will not be excessively extended and entangled or broken.

Since the above-mentioned tuning sprocket, tuning chain, drive sprocket and drive chain are integrated and installed on the pallet side, the exterior and design of the parking facility will also be sophisticated. In addition, compared to the balance chain described above, it is possible to use a shorter tuning chain,
The structure is simplified and the maintenance is easy.

〔Example〕

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

1 to 3 are overall views of the two-tiered parking facility 1, in which two horizontal leg members 2, 2 installed on the ground are integrated by a horizontal member 3, and each leg member 2 is front and rear. And parallel to H-shaped steel columns
4,4,5,5 are erected. The front and rear columns 4 and 5 are connected by beams 6 and 6 at the upper part thereof, and a column structure 35 is formed as a whole.

A pallet 7 is provided between the front pillars 4 and 4 and between the rear pillars 5 and 5, and when a pallet lifting mechanism 15 is operated by a motor 17 which is a driving means described later, a vehicle mounted on the pallet 7 is mounted. 8 can be stored in the upper parking position 9 or can be lowered from the upper parking position 9 to the lower parking position 10 and the vehicle 8 can be taken out.

The pallet 7 is a flat plate body, and an inclined surface 7a for facilitating the entry of the vehicle 8 is formed at the front end of the pallet 7, and a pair of left and right rising portions extending upward from both side portions of the pallet 7 is provided at a position corresponding to the front pillar 4. The members 11 and 11 are integrated. This rising member 1
Guide rollers 12 and 12 that roll along the H-shaped steel flange of the front pillar 4 are separately installed in the upper and lower portions of the front pillars 1 and 11, respectively, so that the pallet 7 can be lifted and lowered smoothly. .

Drive sprockets 14 and 14 are mounted on both sides of the pallet 7 slightly rearward of the rising members 11 and 11, and two keys 24c and 2 are provided at the front ends of torque shafts 24 and 24, which will be described later and extend.
It is attached via 4c (see FIG. 4). A drive chain 16 that constitutes a pallet elevating mechanism 15 is meshed with these drive sprockets 14, and when the drive chain 16 is moved by a motor 17, the pallet 7 is moved up and down.

A tuning sprocket 27 (see FIG. 6), which will be described later, is attached to the rear end of the torque shaft 24. Two bearings 25 for holding the torque shaft 24 are attached to the front end, which is the mounting position of the drive sprocket 14. 25 (see FIG. 4) is provided, and the bearing 25 is bolted to two plate-shaped bearing holding members 13 and 13 (see FIGS. 4 and 5) fixed to both sides of the pallet 7 by welding or the like. Combined at 13a. In addition,
Reference numeral 25a in FIG. 4 is a bearing metal built in the bearing 25.

As shown in FIG. 2, the above-mentioned motor 17 has the right beam 6R.
It is a geared motor that is installed on the upper surface of and has a speed reducer built-in. A braking mechanism is also attached to this, and the sprocket 18 on which the drive chain 16 is stretched can be rotated in the forward and reverse directions. One end 16a of the drive chain 16 is fixed to the lower side of the left beam 6L, and the other end 16b is fixed to the lower side of the right beam 6R. Then, the slack portion 16c is also formed and has the structure as described in the related art, and operates in the same manner as that.

Referring to FIG. 4, the torque shaft 24, which is held by the above-mentioned two bearings 25, 25 and on which the drive sprocket 14 is mounted, is adapted to rotate together with the drive sprocket 14 rotated by the drive chain 16. There is. As shown in FIG. 1, on both sides of the pallet 7, the rear end of the torque shaft 24, which extends rearward from the drive sprocket 14 and is held by a bearing 26 (see FIG. 6), is horizontal to the pallet 7 being lifted. A tuning sprocket 27 is attached to maintain a proper posture. An endless tuning chain 28 is hung on the pair of left and right tuning sprockets 27, 27 (see FIG. 3), and if one of the sprockets 27 becomes unrotatable, the other sprockets 27 will not rotate. As shown in FIG. 6, the bearing 26 is attached to a reinforcing lateral member 7b that forms the rear end of the pallet 7 and extends in the left-right direction. That is, the plate-shaped bearing holding member 29 (see FIG. 7) is fixed to the reinforcing lateral member 7b with the bolt 29a, and the bearing 26,
26 is fixed to the bearing holding member 29 with bolts 29b. Note that 2
6a is a bearing metal built in the bearing 26, 24c in FIG. 6 is a key for fixing the sprocket 27, and 31 is a nut 31 tightened at the rear end of the torque shaft 24 after the tuning sprocket 27 is mounted.

If, for example, the left drive sprocket 14L stops rotating while the pallet 7 shown in FIG. 2 is moving up and down, the left tuned sprocket 27L connected to the left torque shaft 24L is connected.
The rotation of (see FIG. 3) also stops at the same time. in this way,
If at least one of the rotating drive sprockets 14L and 14R stops due to an unexpected situation, the tuning chain
Both of the drive sprockets 14L and 14R are constrained via 28, the horizontal posture of the pallet 7 is maintained, and the vehicle 8 mounted on the pallet 7 can be prevented from tilting or falling.

A mounting member 30a is integrated on the upper portion of the bearing holding member 29 (see FIGS. 6 and 7), and as shown in FIG. 3, the guide rollers 30, 30 are located outside the tuning sprockets 27R, 27L. It is attached to the attachment members 30a, 30a so as to be located in one direction. The guide rollers 30 and 30 roll on the web surface 5a indicated by the chain double-dashed line of the rear columns 5L and 5R, and the rolling guides the lifting and lowering of the pallet 7.

A tire stopper 32 extending in the left-right direction is provided at the rear end of the pallet 7 to accommodate the reinforcing lateral member 7b and the tuning chain 28 (see FIG. 6). Therefore, when the two-stage parking facility 1 is viewed from the rear, as shown in FIG. 3, most of the tuning chain 28 and the reinforcing member 7b are covered with the tire stopper 32, and the guide rollers 30, 30 are the rear pillars 5. It is no longer visible, and the exterior of the two-tiered parking facility 1 is clean.

In the two-stage parking facility 1 having such a configuration, the pallet 7 can be maintained in a horizontal posture by operating in the following manner so that the pallets 7 are synchronized with each other.

When the pallet 7 at the upper parking position 9 of the two-tier parking facility 1 shown in FIG. 1 is lowered to the lower parking position 10 and the vehicle 8A is loaded, the ascending switch is pressed and the motor 17
The drive chain 16 is moved via the sprocket 18 so that the slack portion 16c shown in FIG. While the drive chain 16 moves from the left drive sprocket 14L to the right drive sprocket 14R, both drive sprockets 14L and 14R rotate, and the pallet 7 is guided by the guide rollers 12 and 30 positioned in the up-down and front-rear directions. Rises smoothly. At the same time, the torque shafts 24, 24 also rotate in the same direction, and the tuning sprockets 27L, 27R (3rd
(See the figure) is also rotated. The endless tuning chain 28 matches the rotation speeds of both tuning sprockets 27L and 27R, and synchronizes both driving sprockets 14L and 14R. Therefore,
The ascending speed of the left and right of the ascending pallet 7 is matched, and the horizontal posture is maintained. When the pallet 7 reaches the upper parking position 9, the motor is stopped by operating a limit switch (not shown), and the vehicle 8A is stored.

Should the drive sprocket 14L stop rotating while the pallet 7 is being raised, the tuning sprocket 27L connected to the torque shaft 24 also stops rotating at the same time. As a result, the movement of the tuning chain 28 is stopped, the rotation of the other tuning sprocket 27R is blocked, and the rotation of the drive sprocket 14R is also stopped. The left and right ascent of the pallet 7 is simultaneously restrained, and the pallet 7 stops while maintaining a horizontal posture. If the motor 17 is stopped by separately detecting that both drive sprockets 14L, 14R have stopped, the rotation of the sprocket 18 will also stop, and the drive chain 16 will move to the sprocket 18
It will not be pulled by and cut off.

Even when the above situation occurs when the pallet 7 is unloaded from the upper parking position 9, the motor 17 is not stopped and the drive chain 16 is not extended from the sprocket 18 again.
Tangles between the 18 and the drive sprocket 14R, and the drive sprocket 14R to the drive chain 1
It is also avoided that 6 is dropped. It goes without saying that the stopped posture of the pallet 7 at that time is maintained horizontal.

In the above example, the pallet 7 left-right synchronization mechanism is the rear pillar.
Although it is provided on the 5 and 5 side, move it to the front pillar 4, 4 side,
The pallet lifting mechanism 15 may be provided on the rear pillars 5, 5 side. Further, if the tuning chain and the like are stored in the tire stopper provided at the rear end of the pallet, the appearance of the two-tiered parking facility that can be seen from the rear side is further improved, and the commercial value thereof is remarkably increased.

As can be seen from the above description, according to the left-right synchronization mechanism of the present invention, the pallet in the two-stage parking facility can perform the same function as the conventional balance mechanism, and can be moved up and down while maintaining a horizontal posture. . In addition, compared to the conventional balance chain, a shorter tuning chain can be adopted, so that the tuning mechanism can be integrated and installed on the pallet side, the structure can be simplified, and the labor required for maintenance can be reduced. Together with it, it can be designed with a neat appearance.

[Brief description of drawings]

FIG. 1 is an overall side view of a two-stage parking facility to which the pallet left-right synchronization mechanism of the present invention is applied, FIG. 2 is a view taken along the line II-II of FIG. 1, and FIG. 3 is III of FIG. -III line arrow view, FIG. 4 is a sectional view of the torque shaft attached to the drive sprocket, FIG. 5 is a VV line arrow view of FIG. 4, and FIG. 6 is a tuning mounted on the torque shaft. FIG. 7 is a sectional view of the sprocket, FIG. 7 is a view taken along the line VII-VII in FIG. 6, and FIG. 8 is an overall side view of a two-stage parking facility to which a conventional pallet balancing mechanism is applied. 8 is a view taken along the line IX-IX in FIG. 8, and FIG. 10 is a view taken along the line XX in FIG. 7 ... Pallet, 8,8A ... Vehicle, 9 ... Upper parking position, 10 ... Lower parking position, 14,14L, 14R ... Drive sprocket, 15 ... Pallet lifting mechanism, 16 ... Drive chain , 17 …… Drive means (motor), 24 …… Torque shaft, 27,27L, 27R …… Tuning sprocket, 28 …… Tuning chain, 35 …… Stand structure.

Claims (1)

[Claims] 1. A pallet raising / lowering mechanism including a drive sprocket and a drive chain is operated by a drive means to store a vehicle mounted on a pallet moving up and down in a support structure in an upper tier side parking position, and an upper tier side parking. In a two-tiered parking facility that allows the vehicle to be taken out from the position to the lower parking position, a torque shaft extending forward and backward is attached to the drive sprockets attached to the left and right sides of the pallet, At one end of the torque shafts located on both the left and right sides of the pallet, a tuning sprocket is provided for maintaining the pallet in a vertical position while moving up and down, and an endless tuning chain is hung on both tuning sprocket. Left-right synchronization mechanism for pallets in a two-tiered parking facility, which is characterized in that