JP2023129984A - Two- or multi-stage parking device - Google Patents

Abstract

To provide a two- or multi-stage parking device with which carriers can move horizontally at boarding height (ground surface), gaps between adjacent carriers in the width direction can be reduced, and height of vehicles that can be accommodated in the pit can be significantly increased while maintaining the depth of the pit.SOLUTION: The two- or multi-stage parking device includes a lifting drive device 10, a balance mechanism 20, and a fixing member 30. The lifting drive device 10 is installed on the rear side of a carrier 2 and raises and lowers the rear end portion 2b of the carrier 2 between an upper limit and a lower limit. The balance mechanism 20 is located below the boarding height FL, and synchronizes the lifting and lowering of the front and rear sides of the carrier 2. The fixing member 30 is provided below the boarding height FL across a front gap from the carrier 2 in the pit, and has a horizontal lower surface 30a. The carrier 2 further includes a front up mechanism 40. The front up mechanism 40 comes into contact with the horizontal lower surface 30a near the upper limit, and by rising to the upper limit, raises the height of the front end portion 2a to the boarding height FL.SELECTED DRAWING: Figure 4

Description

The present invention relates to a pit-type parking device, and more particularly to a pit-type two-stage parking device.

In a pit-type parking system, such as a pit-type two-level parking system, vehicles enter and exit the parking lot by directly entering or leaving the parking lot on a pallet (hereinafter referred to as a carrier) located at the entry height (FL). This is done by directly leaving the vehicle on a high-height carriage.
The two-stage parking device accommodates vehicles in two or more parking spaces provided in the same installation space by moving the carrier up and down or across the parking space.
Such a two-stage parking device is disclosed in Patent Document 1, for example.

In a pit-type parking system, the height (upper limit) of vehicles that can be accommodated underground is limited by the depth of the pit and the lifting mechanism. However, if the pit depth is increased, the construction cost becomes excessive. Furthermore, in the case of an existing pit-type parking device, the construction itself is extremely difficult.
Therefore, there is a strong demand for increasing the height (upper limit) of vehicles that can be accommodated underground while maintaining the pit depth, and for example, Patent Documents 2 and 3 have already been proposed.

Japanese Patent Application Publication No. 2003-105997 Japanese Patent Application Publication No. 2007-146543 JP2013-159928A

With the parking devices of Patent Documents 2 and 3 mentioned above, a vehicle having a higher vehicle height than before can be stored in a pit without rebuilding an existing pit.
However, the parking apparatuses disclosed in Patent Documents 2 and 3 are pit-type parking apparatuses in which a carrier on which a vehicle is placed only moves up and down. Therefore, when applied to a pit-type two-stage parking system having a carriage that moves sideways at the entry height (FL), the following problems arise.

(1) The "pit-type parking device" of Patent Document 2 has a balance chain device that prevents the cart from tilting in the left-right direction. Since this balance chain device raises the carrier to the boarding height (FL), it is necessary to fix one end of the chain at a position higher than the boarding height (for example, the ground surface). Therefore, it is necessary to fix the chain to a support located between adjacent carriers at the boarding height (ground surface), which increases the size of the support.
Further, since the support column protrudes outward in the width direction of the carriage at the loading height, it cannot be applied to a pit-type two-stage parking system in which the carriage moves sideways at the loading height (FL).

(2) In the "mechanical parking device" of Patent Document 3, in order to avoid the problem of Patent Document 2, the underground pillars are set lower than the boarding height (for example, the ground surface), and the upper end of one of the left and right underground pillars is Fix one end of the chain nearby, and install a hanging sprocket near the other top end. Thereby, the left and right sides of the carrier are suspended by the suspension sprockets via chains, and the carrier is raised to the boarding height (FL).
With this configuration, the distance from the ground surface to the lower end of the hanging sprocket near the top of the underground column is longer than the distance H3 from the loading surface (boarding height) of the carrier to the lower end of the sprocket fixed to the lower left and right sides of the carrier. By setting H1 short, the depth of the pit can be made shallower by the shorter length.

However, if the above-mentioned distance H3 is set to be larger than the required thickness of the carrier (from the vehicle support surface to the lower end: for example, 100 to 150 mm), the height of the vehicle that can be accommodated will be correspondingly lower. Further, the above-mentioned distance H1 needs to be larger than the outer diameter of the suspension sprocket, and is at least 50 mm.
Therefore, according to Patent Document 3, the amount of increase in vehicle height that can be accommodated while maintaining the depth of the pit is small (for example, 50 to 100 mm), making it difficult to accommodate high-height vehicles (for example, high-roof vehicles).
In addition, in the case of the device of Patent Document 3, it is essential to have a support that is larger than the outer diameter of the hanging sprocket and the outer diameter of the underground lifting device on the outside in the width direction of the carrier, and there is a large gap (e.g. 200 mm) between adjacent carriers in the width direction. (above)), and the accommodation efficiency of the device is low.

The present invention was devised to solve the above-mentioned problems. That is, the purpose of the present invention is to allow the carriers to move horizontally at the boarding height (ground surface), to reduce the gap between adjacent carriers in the width direction, and to accommodate the carriers in the pit while maintaining the depth of the pit. To provide a two-stage parking device capable of greatly increasing the height of a vehicle.

According to the present invention, the vehicle enters and exits from the front side on a carrier located at the vehicle entry height, and the pit-type two-carrier is moved up and down between the entry height and a pit provided below. A multi-stage parking device,
an elevating drive device that is installed at the rear of the carrier and raises and lowers the rear end of the carrier between an upper limit and a lower limit;
a balance mechanism located below the boarding height and synchronizing the lifting and lowering of the front and rear sides of the carrier;
a fixing member provided below the boarding height across a front gap from the carrier in the pit and having a horizontal lower surface;
A two-stage parking device is provided in which the carrier has a front-up mechanism that abuts the horizontal lower surface near the upper limit and raises the height of the front end portion to the boarding height by rising to the upper limit.

According to the present invention, the lifting drive device that lifts and lowers the rear end of the carrier between the upper limit and the lower limit is installed on the rear side of the carrier, so that the lifting drive device is located above the boarding height. Vehicles can enter and exit the warehouse freely from the front side of the carrier.
Therefore, while maintaining the upper limit position of the carrier at the boarding height (ground surface), the lower limit position is set lower in the pit to reduce the difference between the upper and lower limits (lifting stroke) at the rear end of the carrier. can be increased.

Further, since the balance mechanism located below the boarding height synchronizes the elevation of the front and rear sides of the carrier, the front end of the carrier can be elevated and lowered in synchronization with the rear end.
Furthermore, since the balance mechanism does not have a power source, it is possible to reduce the gap between widthwise adjacent carriers.

Furthermore, a fixing member having a horizontal lower surface is provided below the boarding height across a front gap from the carrier in the pit. In addition, the front-up mechanism provided on the carrier comes into contact with the horizontal lower surface of the fixed member near the upper limit, and as it rises to the upper limit, the height of the front end is raised to the boarding height. Vehicles can enter and exit from the front.

Therefore, the carriers can move horizontally at the boarding height (ground surface), the gap between adjacent carriers in the width direction can be reduced, and the height of vehicles that can be accommodated in the pit can be greatly increased while maintaining the depth of the pit. can be increased to

1 is a front view of a two-stage parking device according to the present invention; FIG. It is an enlarged view of FIG. 1(B). 3 is an enlarged view of the front part (A) and the rear part (B) of FIG. 2. FIG. It is an explanatory view of a front up mechanism.

Embodiments of the present invention will be described below based on the drawings. Note that common parts in each figure are given the same reference numerals, and redundant explanation will be omitted.

FIG. 1 is an overall configuration diagram of a two-stage parking system 100 according to the present invention. In this figure, the gate located at the vehicle entry height FL is omitted.
In FIG. 1, (A) is a front view, and (B) is a view taken along the line BB in (A).

In FIG. 1, 6 is a front column, 7 is a rear column, and 8 is a horizontal beam.
In this example, the lower ends of the four front columns 6 are fixed to the front side of the pit P, and the lower ends of the four rear columns 7 are fixed to the rear side of the pit P. The intervals between the four front struts 6 and the intervals between the four rear struts 7 are preferably equal, and are set so that the vehicle 1 can pass through each of them.
Further, the front support column 6 extends upward from the carrier 2 across a front gap. The rear support column 7 extends upward from the carrier 2 across a rear gap.
The horizontal beam 8 horizontally connects the four front columns 6, the four rear columns 7, and the front and rear front columns 6 and rear columns 7, respectively. The horizontal beams 8 also include horizontal beams in the front-rear direction.
A space surrounded by the front support 6, the rear support 7, and the horizontal beam 8 is set to a size that can accommodate the carrier 2 and the vehicle 1.
The vehicles 1 are, for example, a passenger car 1a with a low height and a high roof car 1b with a high height.

The two-stage parking device 100 shown in FIG. 1 is a pit type, and the vehicle 1 enters and exits from the front on a carrier located at the entry height FL of the vehicle 1, and the vehicle 1 enters and exits from the front side on a carrier located at the entry height FL and below. The carrier 2 is raised and lowered between the pit P and the provided pit P.
In this example, the two-stage parking device 100 is an elevating and traversing type with one underground stage and two above-ground stages, in which three stages (B1, 1F, 2F) of vehicle storage positions are provided in the same installation space.

In this example, the three carriages 2 located on B1 (underground) among the three stages can only be moved up and down, and the two carriages 2 located on the 1st floor can move horizontally, and the two carriages 2 located on the 2nd floor can move horizontally. The three carriers 2 can only be moved up and down.
Therefore, in this example, the number of vehicles 1 accommodated is 3×3−1=8.

In this example, the triple two-stage parking device has three entry/exit sections at the entry height FL. The overall width of the carrier 2 is preferably the same, but may also be different. In addition, each loading/unloading section is configured such that three carriers 2 are located adjacent to each other with a necessary gap (for example, 40 mm or less) between them.

The two carriers 2 located on the 1st floor have wheels 3 at both ends in the length direction, and are horizontally moved along two horizontal rails 4 provided on the 1st floor by a horizontal drive device (not shown). The vehicle 1 is directly entered and exited from either of the entry/exit sections. Hereinafter, warehousing and retrieval means warehousing and warehousing.

The three carriers 2 located on the 2F are raised and lowered by a lift drive device (not shown). The elevating drive device is, for example, a device that winds up or unwinds a vertically extending flexible string member (chain or wire) at a position that does not interfere with the vehicle 1, and raises and lowers its lower end.

The elevating mechanism for the carrier 2 located in B1 (underground) will be described later.

Note that the present invention is not limited to the above-mentioned two-stage parking device 100, and may be any other parking device as long as it has a plurality of carriers 2.

FIG. 2 is an enlarged view of FIG. 1(B). Moreover, FIG. 3 is an enlarged view of the front part (A) and the rear part (B) of FIG.
In FIG. 2, a two-stage parking device 100 of the present invention includes a lifting drive device 10, a balance mechanism 20, and a fixing member 30.

The lifting drive device 10 is installed on the rear side of the carrier 2 and raises and lowers the rear end portion 2b of the carrier 2 between an upper limit and a lower limit.
In FIG. 3(B), the lifting drive device 10 includes a lifting chain 12, a hanging sprocket 14, and a sprocket drive device 16.
Preferably, there are two lifting chains 12, one end of which is fixed to both ends in the width direction of the rear end 2b of the carrier 2, and extends above the boarding height FL. In this example, the carrier 2 has an overhang 2c extending further rearward from the rear end 2b, and the lower end 12a of the lifting chain 12 is fixed to both widthwise ends of the rear end of the overhang 2c. .
Preferably, two suspension sprockets 14 are provided above the riding height FL of the rear strut 7, and suspend the two lifting chains 12 synchronously.
The sprocket drive device 16 rotates the two hanging sprockets 14 synchronously.
With this configuration, by rotationally driving the suspension sprocket 14 by the sprocket drive device 16, both ends in the width direction of the rear end portion 2b of the carrier 2 can be raised and lowered synchronously between the upper and lower limits set in advance. .

The balance mechanism 20 is located below the boarding height FL, and synchronizes the lifting and lowering of the front and rear sides of the carrier 2.
In FIGS. 2 and 3, the balance mechanism 20 includes a front sprocket 22, a rear sprocket 24, and a synchronization chain (hereinafter referred to as balance chain 26).
The front sprocket 22 is provided at the front end 2a of the carrier 2 and guides the balance chain 26 by idling about a horizontal axis in the width direction.
The rear sprocket 24 is provided at the rear end portion 2b of the carrier 2 and guides the balance chain 26 by rotating around a horizontal axis in the width direction.
The balance chain 26 has one end 26a fixed to the fixed member 30, extends from above to below the horizontal lower surface 30a of the fixed member 30, and further extends downward via the lower side of the front sprocket 22 and the upper side of the rear sprocket 24. , the other end 26b is fixed to the lower end of the rear column at the bottom of the pit.
The balance mechanisms 20 are preferably provided on both sides of the carrier 2 in the width direction.

With the configuration of the balance mechanism 20 described above, when the rear end 2b of the carrier 2 is raised by the lifting drive device 10, the length of the balance chain 26 from the rear sprocket 24 to the lower end increases by the amount of the rise, and the length of the balance chain 26 from the front sprocket 22 to the lower end increases by the amount of the rise. The length to the top edge is reduced. The same applies to the case of descent.
Therefore, by raising and lowering the rear end portion 2b of the carrier 2 by the lifting drive device 10, the balance mechanism 20 can synchronize the raising and lowering of the front side and the rear side of the carrier 2.

In FIG. 3, the fixing member 30 is provided below the boarding height FL across a front gap from the carrier 2 in the pit, and has a horizontal lower surface 30a.
In this example, the fixing member 30 is fixed to a front support column 6 that extends upward from the carrier 2 across a front gap. Further, in this example, the horizontal upper surface 30b of the fixing member 30 is located at the entry height FL, and functions as the horizontal rail 4 described above.

In FIG. 3 , the carrier 2 further includes a front-up mechanism 40 .
FIG. 4 is an explanatory diagram of the front up mechanism 40. In this figure, (A) is when the carrier 2 is stopped at the upper limit, (B) is a state where the tip 42a of the hook member 42, which will be described later, is in contact with the horizontal lower surface 30a while rising, and (C) is the tip of the hook member 42. The portion 42a shows a state in which the horizontal lower surface 30a is separated and raised or lowered.

In FIG. 4, the front up mechanism 40 has a hook member 42. As shown in FIG. The hook member 42 is provided at the front end 2 a of the carrier 2 and is swingable about the horizontal axis 41 in the width direction, and has a length such that the tip 42 a reaches the horizontal lower surface 30 a of the fixing member 30 .
Note that 43 in the figure is a stopper that limits the swinging of the hook member 42.
The above-mentioned front sprocket 22 is provided between the swing center O1 of the hook member 42 and the tip portion 42a.

During the ascent or descent in FIG. 4(C), the hook member 42 rotates clockwise in the figure due to the weight of the carrier 2, and is held at a position limited by the stopper 43. Therefore, in this state, by raising and lowering the rear end portion 2b of the carrier 2 using the above-mentioned lifting drive device 10, the balance mechanism 20 allows the front and rear sides of the carrier 2 to be raised and lowered in synchronization.

In FIG. 4(B), when the tip 42a of the hook member 42 contacts the horizontal lower surface 30a near the upper limit, the hook member 42 remains in contact with the horizontal lower surface 30a due to the upward force of the carrier 2. swings downward. Therefore, the front sprocket 22 and the swing center O1 (widthwise horizontal axis 41) rise while the tip portion 42a remains in contact with the horizontal lower surface 30a.
In this case, since the front sprocket 22 rises in synchronization with the rear sprocket 24, the amount of rise of the swing center O1 (horizontal axis 41 in the width direction) is larger (for example, about twice) than the rear sprocket 24, and the amount of rise is greater than that of the rear sprocket 24. The front end 2a of the carrier 2 can be lifted relatively upward during the ascent.

At the time of upper limit stop in FIG. 4(A), the vehicle support surface 5 of the carrier 2 is set to the boarding height FL of the vehicle 1.
That is, the front up mechanism 40 contacts the horizontal lower surface 30a near the upper limit, and raises the height of the front end portion to the entry height FL by rising to the upper limit.

During the ascent (or descent) from FIG. 4(C) to FIG. 4(B), the front and rear sides of the carrier 2 are raised and lowered in synchronization by the balance mechanism 20 as described above. Therefore, the amount of elevation (or amount of descent) during this period is the same on the front and rear sides of the carrier 2.
During the ascent (or descent) from FIG. 4 (B) to FIG. (For example, about twice).

When the vehicle support surfaces 5 on the front and rear sides of the carrier 2 match the boarding height FL of the vehicle 1 at the upper limit stop in FIG. 4(A), the front up mechanism 40 During the ascent (or descent) to FIG. 4(B), the rear side of the carrier 2 is at a higher position than the front side. However, this difference is, for example, about half (for example, about 100 mm) of the front-up amount by the front-up mechanism 40, and does not affect the elevation of the carrier 2.
Moreover, in this case, at the lower limit of the carrier 2, that is, at the bottom of the pit, the rear end 2b of the carrier 2 is higher than the front end 2a, as shown in FIG.

Note that this configuration is not essential, and the front end portion 2a and the rear end portion 2b may have the same height at the lower limit of the carrier 2.
For example, by further tightening the lifting chain 12 from the state shown in FIG. 2, the heights of the front end 2a and the rear end 2b can be made the same at the lower limit of the carrier 2.

Further, when the vehicle is stopped at the upper limit in FIG. 4A, the vehicle support surface 5 on the rear side of the carrier 2 may be set higher than the entry height FL within a range that does not interfere with the loading and unloading of the vehicle 1.
Further, in this case, the height of the vehicle in the pit can be ensured by setting the rear side of the carriage 2, which is traveling at the boarding height FL, higher than the front side, as shown in FIG.
With this configuration, the front side and the rear side of the carrier 2 can be made at the same height during the ascent (or descent) from FIG. 4(C) to FIG. 4(B).

In FIG. 4, the swing center O1 of the hook member 42 is located near the vehicle support surface 5 of the carrier 2.
Furthermore, at the upper limit (when stopped at the upper limit) in FIG. 4(A), the rotation center O2 of the front sprocket 22 is located below the vehicle support surface 5, and the tip 42a in FIG. 4(C) hits the horizontal lower surface 30a. When not in contact, the center of rotation O2 of the front sprocket 22 is located above the vehicle support surface 5.
With this configuration, the distance (difference in height) from the vehicle support surface 5 of the carrier 2 to the lowest end of the carrier 2 in the state shown in FIG. 4(C) can be made smaller than that of a conventional carrier (for example, 20 to 50 mm). .
Therefore, by setting the center position (height from the vehicle support surface 5) of the rear sprocket 24 to be substantially the same as the center position of the front sprocket 22 in the state shown in FIG. The thickness (from the vehicle support surface to the lower end) can be made smaller than the conventional thickness (for example, 100 to 150 mm).
As a result, even if there is not enough depth in the existing pit, the lifting stroke of the carrier can be made larger than before.

FIG. 2 shows a high roof vehicle 1b with a vehicle height of 1750 mm accommodated in a pit. In the case of the conventional structure, the vehicle that could be accommodated in the same pit was a passenger car 1a with a vehicle height of 1550 mm. Therefore, in this example, the height of the vehicle 1 that can be accommodated in the pit P can be increased by 200 mm.

According to the embodiment of the present invention described above, since the lifting drive device 10 that lifts and lowers the rear end portion 2b of the carrier 2 between the upper limit and the lower limit is installed on the rear side of the carrier 2, the lifting drive device 10 Even if the carriage 2 is located above the boarding height FL, the vehicle can freely enter and exit from the front side of the carrier 2.
Therefore, while maintaining the upper limit position of the carrier 2 at the boarding height (ground surface), the lower limit position is set lower in the pit, and the difference between the upper and lower limits of the rear end 2b of the carrier 2 (lifting/lowering stroke) can be increased.

In addition, the balance mechanism 20 located below the boarding height FL synchronizes the elevation of the front and rear sides of the carrier 2, so that the front end of the carrier 2 can be elevated and lowered in synchronization with the rear end 2b. .
Further, since the balance mechanism does not have a power source and is composed only of a chain and a sprocket, it is possible to reduce the gap between adjacent carriers in the width direction.

Further, a fixing member 30 having a horizontal lower surface 30a is provided below the boarding height FL across a front gap from the carrier 2 in the pit. In addition, the front-up mechanism 40 provided in the carrier 2 contacts the horizontal lower surface 30a of the fixing member 30 near the upper limit, and as it rises to the upper limit, lifts the height of the front end to the boarding height FL. The vehicle 1 can enter and leave the warehouse from the front side at the height (ground surface).

Therefore, the vehicle 1 can be accommodated in the pit P while the carrier 2 can move sideways at the boarding height FL (ground surface), the gap between adjacent carriers in the width direction can be reduced, and the depth of the pit P is maintained. vehicle height can be significantly increased.

Note that the present invention is not limited to the embodiments described above, and it goes without saying that various changes can be made without departing from the gist of the present invention.

FL boarding height, O1 center of swing, O2 center of rotation, P pit,
1 vehicle, 1a passenger car, 1b high roof vehicle, 2 carrier, 2a front end,
2b rear end, 2c overhang, 3 wheels, 4 horizontal rail, 5 vehicle support surface,
6 front column, 7 rear column, 8 horizontal beam, 10 lifting drive device,
12 lifting chain, 12a lower end, 14 hanging sprocket,
16 sprocket drive device, 20 balance mechanism, 22 front sprocket,
24 rear sprocket, 26 balance chain, 26a one end,
26b other end, 30 fixing member, 30a horizontal lower surface, 30b horizontal upper surface,
40 front up mechanism, 42 hook member, 42a tip,
100 Two-stage parking device

Claims (5)

A pit-type two-stage parking system in which vehicles enter and exit from the front on a carrier located at the vehicle entry height, and the carrier is raised and lowered between the entry height and a pit provided below. There it is,
an elevating drive device that is installed at the rear of the carrier and raises and lowers the rear end of the carrier between an upper limit and a lower limit;
a balance mechanism located below the boarding height and synchronizing the lifting and lowering of the front and rear sides of the carrier;
a fixing member provided below the boarding height across a front gap from the carrier in the pit and having a horizontal lower surface;
The carrier has a front-up mechanism that abuts the horizontal lower surface near the upper limit and raises the height of the front end portion to the boarding height by rising to the upper limit. The balance mechanism includes a front sprocket that is provided at the front end of the carrier and rotates idly about a horizontal axis in the width direction to guide a balance chain;
a rear sprocket provided at the rear end of the carrier and idling about a horizontal axis in the width direction to guide the balance chain;
The balance chain has one end fixed to the fixed member, extends from above to below the horizontal lower surface, further extends below through the lower side of the front sprocket and the upper side of the rear sprocket, and has the other end fixed to the pit. The two-level parking device according to claim 1, which is fixed to the bottom. The front-up mechanism includes a hook member that is provided at the front end of the carrier and is swingable about a horizontal axis in the width direction and has a length that reaches the horizontal lower surface of the hook member, and a swing center of the hook member. and the front sprocket provided intermediately between the distal end portion and the front sprocket,
3. The tip of the hook member contacts the horizontal lower surface near the upper limit, and when the hook member rises to the upper limit, the hook member swings downward, thereby lifting the front end upward. Two multi-level parking device. The swing center of the hook member is located near a vehicle support surface of the carrier,
At the upper limit, the front sprocket is located below the vehicle support surface,
The two-stage parking device according to claim 3, wherein the front sprocket is located above the vehicle support surface when the tip portion does not contact the horizontal lower surface. In the pit, there is a rear support that extends upward from the carrier across a rear gap,
The lifting drive device includes a lifting chain having one end fixed to the rear end of the carrier and extending above the boarding height;
a hanging sprocket that is provided above the boarding height of the rear support and suspends the lifting chain;
The two-stage parking device according to claim 1, further comprising a sprocket drive device that rotationally drives the hanging sprocket.

Images