JP2990422B2 - Mechanical parking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanical parking device having a power transmission device for reliably transmitting power between two members which are selectively connected and disconnected. You.

[0002]

2. Description of the Related Art A power transmission path of a power transmission device is divided,
And mechanical devices used in conjunction leave them as necessary
Te, the power transmission device between the traveling vehicle and the parking chamber for mechanical parking device is described below as an example.

[0005] As shown in FIGS. 5 to 7, a mechanical parking device is often installed in an underground portion of a building 1 such as an office building, a store, or a warehouse. Further, the entire parking device is divided into a plurality of units such as units 2 and 3 arranged side by side,
And it is formed by combining these units. Inside each of the units 2 and 3, running paths 4 and 5, which are parallel to each other, a running carriage 6, a running rail 7 laid on each running path 4 and 5, and tandemly arranged on both left and right sides of the running path. It has a plurality of parking rooms 8. Each parking room 8 is defined by a multi-stage (for example, two-stage) parking shelf 9 (see FIG. 7). By the way, as shown in FIG. 7, the traveling carriage 6 is of a type arranged at each stage of the parking shelf 9 and a traveling carriage is arranged only at the lowest stage of the parking shelf 9 and a lift is mounted on this traveling carriage. In some cases, the vehicle 10 is delivered to the parking shelves at each stage. This traveling vehicle with a lift will be described later.

On the other hand, an entrance / exit passage 11 is set in the first floor of the building 1 and the like, and an entrance room 12 and an exit room 13 are provided in the middle thereof. Further, an elevating device 14 is provided as a communication means between the entry room 12 and the exit room 13 and the unit 3. In addition, traveling cart 6, parking room 8, storage room 12, storage room
The conveyor 13 is provided in the direction 13 orthogonal to the traveling paths 4 and 5, respectively. In addition, the lifting device
In order to transfer the vehicle between the unit 2 having no unit 14 and the unit 3, a transfer conveyor chamber 51 is provided at a portion adjacent to the elevating device 14. For convenience of explanation, the reference numeral 15 is assigned to the conveyor of the traveling trolley 6 and the reference numeral 16 is assigned to the conveyor of the parking room 8 (see FIG. 8). These conveyors 15, 16
, The vehicle is freely delivered, and the vehicle 10 enters and exits a predetermined parking room. The applicant has already disclosed the details of the mechanical parking device having the above-described configuration in Japanese Patent Application Laid-Open No. 7-238708 and the like, and the details of the traveling carriage with lift have been already disclosed in Japanese Patent Application Laid-Open No. 7-238705. .

By the way, the conveyor 16 in the parking room 8 receives driving force from a power source provided on the traveling vehicle 6 by the following power transmission device. Hereinafter, the power transmission device will be described with reference to FIG.

The main frame 17 of the traveling vehicle 6 is provided with a front conveyor 15a and a rear conveyor 15b. A movable frame 18 that moves in a direction orthogonal to the traveling path 4 is provided at a central portion of the main frame 17. Further, a power transmission roller 19 is rotatably provided on a side portion of the movable frame 18 facing the parking room 8. The power sources of the power transmission roller 19 and the conveyor 15 of the traveling vehicle 6 are both the drive motor 20 of the traveling vehicle 6. The main frame 17 is provided with a driving means 21 for moving the movable frame 18 in a direction orthogonal to the traveling path 4, that is, in a direction approaching the parking room 8. Further, the conveyor 16 provided inside the parking room 8 also includes a front conveyor 16a and a rear conveyor 16b, like the traveling carriage 6. The front and rear conveyors 16a, 16a are located on the traveling path 4 side of the parking room 8.
A driven roller 22 is provided for transmitting power to b.

When the vehicle 10 enters the warehouse, the traveling vehicle 6 on which the vehicle is mounted moves on the traveling rail 7 with wheels 24 driven by a traveling motor 23 and stops at the target parking room 8. . Then, as shown in FIG.
(FIG. 8), the movable frame 18 is moved in the direction of the target parking room 8. As a result, the power transmission roller 19 provided at the side end of the movable frame 18 comes into pressure contact with the driven roller 22 of the parking room 8 as shown in FIG. Next, drive motor 20
, The conveyor 15 of the traveling carriage 6 and the power transmission roller 19 are rotated. The power transmission roller 19 drives the driven roller 22, and the rotation of the driven roller 22
It is transmitted to the conveyor 16 of the parking room 8 by 25. Therefore,
The conveyors 15 and 16 rotate synchronously, and the vehicle on the traveling trolley 6 is carried into the target parking room. As described above, the drive motor 20 of the traveling vehicle 6 is provided on the conveyor 16 of the parking room 8 by the power transmission device having the power transmission roller 15 and the driven roller 22.
Power is transmitted.

[0008]

However, the mechanical parking device having the above configuration has the following problems. In general, the traveling trolley 6 and the parking shelf 9 are not made to be a rigid rigid body in order to reduce the size and weight, and a design that allows deflection, deformation, and the like to such an extent that safety is not impaired may be applied. desirable. However, due to the reaction force caused by pressing the power transmission roller 19 against the driven roller 22 of the parking room 8, FIG.
As shown in (b), the deflection of the parking shelf 9 and the deflection of the main frame 17 ( FIG. 8 ) occur, and therefore the pressing force is insufficient and the power transmission between the power transmission roller 19 and the driven roller 22 is insufficient. There was a risk of becoming.

Further, when the above-mentioned power transmission device is used for a traveling carriage with a lift, the lift has a structure extending upward, so that the deflection amount of the whole traveling carriage becomes large, especially when the vehicle is transported in the upper stage. Power transmission could be insufficient.

In order to prevent this, it is possible to provide sufficient reinforcement to the traveling vehicle 6, but this increases the weight of the traveling vehicle, and accordingly, it is necessary to reinforce the entire parking device. . In particular, when the number of units (2, 3 and the like) to be installed is large, the increase in size and weight of the entire apparatus is considerable, and it is not preferable because of the influence on the building 1 and the like.

In order to further improve the transmission efficiency of the power transmission device, a power transmission roller 19 and a driven roller
A gear may be used instead of 22 (obtaining the transmission force by frictional force). When transmitting power using gears,
The positional relationship between the gears during power transmission needs to be maintained such that both reference pitch circles are circumscribed and the center position of each gear is adjusted to the operating direction of the movable frame 18. Therefore, as compared with the case where the power transmission roller 19 and the driven roller 22 are used, higher positioning accuracy is required for both of them during connection. For this reason, it is necessary to surely suppress the deviation of the positional relationship between the gears due to the occurrence of the deflection.

[0012] The present invention has been made in view of the above problems, and has as its object to divide the power transmission path of the power transmission device, a power transmission device used in conjunction leave them as necessary An object of the present invention is to provide a mechanical parking device having improved positioning accuracy at the time of connection, maintaining a desired positional relationship, and reliably transmitting power between two members.

[0013]

According to a first aspect of the present invention, there is provided a mechanical parking apparatus for solving the above-mentioned problems .
Arranging a plurality of parking rooms along the traveling path,
Vehicle in a direction orthogonal to the running path
Conveyors that can be connected to each other
A movable frame that moves in a direction orthogonal to the traveling path of the bogie
With the driven means for driving the conveyor in the parking room
And a drive for transmitting the power of the traveling vehicle to the driven means
A mechanical parking device provided with a means,
And each of the movable frames is provided in the parking room
Driven gear and power transmission gear provided on the movable frame
Is circumscribed and the center position of the two gears is
Guide to the positional relationship that matches the operating direction of the movable frame
After being guided to the positional relationship, the attraction force of the electromagnet causes the positional relationship.
It is characterized in that connecting means for holding the engagement is provided .

According to the present invention, the parking room is powered by the power of the traveling vehicle.
To move the conveyor
When connecting the provided driving means and the driven means of the parking room,
The connection provided in each of the parking room and the movable frame
By means, the reference of the driven gear and the power transmission gear
The pitch circle is circumscribed and the center position of both gears is
It guides you to a positional relationship that matches the direction in which the frame operates. Sa
Furthermore, after being guided to the positional relationship, the attraction force of the electromagnet causes
The parking space and the movable frame.
And are treated as an integral structure. Therefore, the movable frame
A power transmission gear provided in the vehicle, and a driven gear of the parking room.
, Always maintain a desired state, and the above power transmission
Increase the transmission efficiency in the device.

Further, a mechanical parking according to a second aspect of the present invention.
The device is provided at the end of the movable frame as the connecting means.
Is provided with an electromagnet whose tip is convex, and in the parking room
A concave gold whose tip corresponds to the tip of the electromagnet
A generic block is provided. And the electromagnet and the front
When connecting the metal blocks, both ends depend on the shape.
And when the engagement is completed,
And the movable frame are guided to the positional relationship. So
And holds the positional relationship by the attraction force of the electromagnet.
I do.

[0016]

Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, the same or corresponding parts as in the conventional example are denoted by the same reference numerals, and detailed description thereof will be omitted.

FIGS. 1 to 3 show a main part of a power transmission device used for a traveling vehicle and a parking room of a mechanical parking device according to an embodiment of the present invention. Here, the basic structure of the power transmission device will be described with reference to FIGS. 2 and 3. By the way, also in the embodiment of the present invention, the basic configuration of the mechanical parking device such as the traveling trolley 6, the parking room 8, and the like is the same as the conventional mechanical parking device described with reference to FIGS.

A power transmission gear 26 as a driving means is rotatably provided on the movable frame 18 of the traveling vehicle 6.
A sprocket 27 is provided on a rotation shaft of the power transmission gear 26. And the sprocket 27 has a chain
The power of the conveyor driving motor 20 (see FIG. 8) is transmitted by 28. The tooth width of the power transmission gear 26 is set to be approximately twice the tooth width of the driven gear 29 for the reason described later. Further, an end face 18a concentric with the power transmission gear 26 and having a larger diameter than the gear 28,
A guide receiving portion 18b having a shape corresponding to a guide arm 30 (described later) provided on the parking shelf 9 is formed. The end surface 18a comes into contact with a guide roller 32, which will be described later, and its outer diameter is set at the time of contact with the guide roller 32.
The value is set such that the reference pitch circles of the power transmission gear 26 and the driven gear 29 circumscribe.

When the traveling vehicle 6 is at a predetermined stop position with respect to the target parking room 8, the power transmission gear 26
A driven gear 29 is arranged at a position corresponding to the following. The driven gear 29 is the driven roller 22 in the conventional example shown in FIG.
Therefore, the rotation of the driven gear 29 is transmitted to the conveyor 16 of the parking room 8 by the transmission member 25 (see FIG. 8) as in the conventional example. By the way, this transmission member 25
A guide roller 32 is rotatably provided on a rotating shaft 31 connected to the shaft. This guide roller 32 is a power transmission gear.
When the driven gear 29 is connected to the driven gear 29, the driven gear 29 comes into contact with the end face 18a of the movable frame 18, and the two gears 26 and 29 are maintained in the above-described positional relationship.

A rotation preventing claw 34 provided on a hook 33 is pressed against the driven gear 29. The hook 33 is a member whose one end is rotatably supported by the rotating shaft 33 a and has a shape along the outer peripheral surface of the driven gear 29. The urging means 35 such as a spring obtains the pressing force of the rotation preventing claw 34 against the driven gear 29. Normally, the rotation preventing claw 34 is engaged with the driven gear 29 to prevent the driven gear 29 from being inadvertently rotated.
However, by connecting the power transmission gear 26 to the driven gear 29, the hook 33 is pushed by the end of the movable frame 18 and rotates about the rotation shaft 33a, and the engagement between the driven gear 29 and the rotation preventing claw 34 Can be solved.

Further, a bracket 36 for supporting the rotating shaft 31
Is provided with a guide arm 30. As shown in FIG. 3, the guide arm 30 is formed by bending a rod-like member into a substantially U-shape and projecting a curved end portion toward the traveling vehicle 6. When the power transmission gear 26 is connected to the driven gear 29, the guide arm 30 engages with the guide receiving portion 18b of the movable frame 18. In addition, when the power is transmitted from the power transmission gear 26 to the driven gear 29, the positional relationship between the gears (the vertical positional relationship in FIG. 2) due to the reaction force is prevented from being shifted.

Incidentally, the power transmission device according to the embodiment of the present invention has a characteristic portion shown in FIG. 1 in addition to the above configuration. An electromagnet 37 is provided at an end of the movable frame 18 of the traveling vehicle 6. The tip 37a of the electromagnet 37 has a convex shape. Also, a bracket fixed to the parking shelf 9
The 36 is provided with a metal block 38 that can be attracted to the electromagnet 37. The tip 38a of the metal block 38 has a concave shape corresponding to the tip 37a of the electromagnet 37. When the electromagnet 37 and the metal block 38 are connected, both ends 37a, 38a
Are guided to each other by their shapes, and when the engagement is completed, the reference pitch circle of the power transmission gear 26 and the driven gear 29 circumscribes, and the center position of both gears 26 and 29 is
Coincides with the operating direction of

Here, the operation and effect obtained from the power transmission device having the above configuration will be described. When the movable frame 18 is moved in the direction of the parking room 8, the guide receiving portion 18 b formed at the tip of the movable frame 18 engages with the guide arm 30. Further, the guide roller 32 is attached to the end face 18a of the movable frame 18.
Abuts. At the same time, as shown in FIG.
The 37 and the metal block 38 are engaged. At the time of this connection, regarding the positional deviation in the vertical direction (the traveling direction of the traveling vehicle 6) in FIG. 3, since the power transmission gear 26 has a tooth width approximately twice that of the driven gear 29, The displacement of the gears 26 and 29 can be absorbed by the difference in the tooth width, and power can be transmitted.

Then, by supplying a current to the electromagnet 37, the electromagnet 37 is attracted to the metal block 38. Therefore,
A predetermined positional relationship between the power transmission gear 26 and the driven gear 29 at the time of connection can be maintained by the attractive force of the electromagnet 37. Then, the movable frame 18 of the traveling vehicle 6 and the parking shelf 9 can be handled as an integrated structure. Therefore, the positional relationship between the power transmission gear 26 and the driven gear 29 is always maintained in a desired state, and the driven gear 29
The reaction force generated when driving the parking rack 9 and the movable frame
It will be possible to receive both efficiently with both 18. Therefore, the stiffness of each component can be set smaller than in the case of receiving the reaction force by itself. further,
A force for maintaining the positional relationship between the power transmission gear 26 and the driven gear 29 in opposition to the reaction force,
Since there is no need to generate the driving means 21, the size of the driving means 21 can be reduced.

As described above, the electromagnet 37 and the electromagnet 37 are attached to both ends of the parking shelf 9 and the movable frame 18 (portions that come into contact when connected).
By providing the connecting means such as the metal block 38, the positional relationship between the two can be guided to a predetermined state, and it is easy to maintain the state, so that the positioning accuracy at the time of the connection can be maintained at a high level. Power transmission by the power transmission gear 26 and the driven gear 29.

When the power transmission gear 26 and the driven gear 29 are disengaged, the current supplied to the electromagnet 37 is cut off to release the attraction between the electromagnet 37 and the metal block 38. The electromagnet 37 and the metal block 38 shown in FIG.
The guide receiving portion 18b and the guide arm 30 shown in FIG.
Alternatively, it can be used in place of the end surface 18a of the movable frame 18 and the guide roller 32.

By using the power transmission device having the above-described configuration for the traveling carriage 39 with a lift shown in FIG. 4, further remarkable effects can be obtained. Hereinafter, the operation effect obtained by using the traveling vehicle 39 with the lift and the above-described power transmission device will be described.

The traveling carriage 39 with a lift performs the delivery of the vehicle 10 to each of the multi-stage parking rooms 8 (see FIG. 7) provided on both sides of one traveling path 4 by one traveling carriage. It is. The traveling carriage 39 with a lift is installed at the lowermost stage of the parking room 8, and the parking room 8 above the parking room 8 is provided with a lift device (lifter) having a height corresponding to the number of installation stages of the parking room. Is delivered. Therefore, the conveyor 15, the movable frame 18 (having the power transmission gear 26 at the end), etc.
It is attached to the lifting platform 40. The traveling carriage 39 with a lift shown in FIG. 4 corresponds to a three-stage parking room.
The vehicle includes a support column 41 for guiding the upward direction, a lifting motor 42, a lifting chain 43, and the like.

When the vehicle 10 is transferred to and from the upper parking room by using the traveling carriage 39 with a lift, as shown in FIG. 4, the elevator 40 is raised to the target parking room height. Let it. By the way, the column 41 that guides the elevating platform 40 has a structure in which a root portion is supported by the main frame 17. Therefore, when the lift 40 is raised to bring the power transmission gear 26 into contact with the driven gear 29 in the parking room, the amount of deflection of the column 41 tends to increase due to the reaction force. Therefore, there is a possibility that power transmission may be further insufficient as compared with the traveling carriage 6 (single-stage type) described above. However, in the case of the traveling carriage 39 with a lift, the reinforcement for preventing the carriage 39 itself from bending causes a considerable increase in size and weight.

Then, the parking rack 9 and the movable frame 18 are integrated by the attractive force of the electromagnet 37 and the metal block 38, so that the elevator 40 and the parking rack 9 are treated as an integral structure, and the power transmission gear The reaction force generated when the driven gear 29 is driven by 26 is received by both the parking shelf 9 and the movable frame 18. In this way, the occurrence of the deflection is suppressed. In addition, even if the parking shelf 9, the movable frame 18, and the like are slightly bent, the positional relationship between the power transmission gear 26 and the driven gear 29 is maintained in an optimum state, which adversely affects both power transmission efficiencies. Never. As described above, the effect (miniaturization and weight reduction) of using the power transmission device according to the embodiment of the present invention for the traveling carriage 39 with a lift becomes very large.

In the embodiment of the present invention, an example in which the power transmission device is applied to a mechanical parking device has been described. However, the power transmission device according to the present invention also has a power transmission path of the power transmission device. It can be used for a mechanical device which is divided and used as needed by connecting and disconnecting them.

[0032]

According to the present invention, the following effects are obtained. First, according to a first aspect of the present invention
According to the mechanical parking device, the power transmission by the power transmission device
The reaction force at the time is received by both the traveling carriage and the components of the parking room.
Clamping, pressing the conventional trolley gear against the parking gear
The power transmission gear prevents deformation of members due to
And the position accuracy between the driven gear and the driven gear can be maintained at a high level.
It is possible to reliably transmit both powers
Become. Therefore, each part of the mechanical parking device must be reinforced.
Therefore, it is possible to prevent an increase in the size, weight, and the like of the apparatus.

Further, the mechanical parking according to claim 2 of the present invention.
According to the device, when connecting the electromagnet and the metal block
The two tips are guided by
Is completed, the parking room and the movable frame
It is possible to guide to the positional relationship.

[Brief description of the drawings]

FIG. 1 shows a power transmission device of a mechanical parking device according to an embodiment of the present invention, in which (a) shows a state before connection of a movable frame of a traveling vehicle and a parking shelf of a parking room,
(B) is a schematic diagram showing a state after connection.

FIG. 2 is a side view of a main part of a power transmission device used for a traveling vehicle and a parking room of the mechanical parking device according to the embodiment of the present invention.

FIG. 3 is a top view of the power transmission device shown in FIG. 2;

FIG. 4 is a schematic diagram of a traveling carriage with a lift, which can include the mechanical parking device according to the embodiment of the present invention.

FIG. 5 is a schematic diagram illustrating an example of a mechanical parking device.

6 is a longitudinal sectional view taken along line AA of FIG.

FIG. 7 is a longitudinal sectional view taken along line BB of FIG. 5;

8 is a schematic diagram showing the structure of a traveling vehicle used in the mechanical parking device shown in FIG.

9A and 9B show a power transmission device of a conventional mechanical parking device, wherein FIG. 9A shows a state before connection of a movable frame of a traveling vehicle and a parking shelf of a parking room, and FIG. 9B shows a state after connection. FIG.

[Explanation of symbols]

 6 Traveling cart 8 Parking room 9 Parking shelf 18 Movable frame 26 Power transmission gear 29 Follower gear 37 Electromagnet 37a Tip 38 Metal block 38a Tip

Claims (2)

(57) [Claims] 1. A plurality of parking rooms along a traveling path of a traveling vehicle.
And the traveling truck and the parking room are provided with the traveling
Conveyors that transport vehicles in a direction perpendicular to the path
Provided so as to be connectable and orthogonal to the traveling path of the traveling vehicle
The movable frame moving in the direction, the parking room conveyor
Is engaged with driven means for driving the
Mechanical parking with drive means for transmitting the power of the bogie
In the device, each of the parking room and the movable frame
A driven gear provided in the parking room and the movable frame;
The reference pitch circle of the power transmission gear provided on the
The center position of the two gears is in the direction of operation of the movable frame.
After being guided to the matching positional relationship and being guided by the positional relationship
Connecting means for maintaining the positional relationship by the attractive force of the electromagnet.
A mechanical parking device, characterized by being radiated. 2. The movable frame of the movable frame as the connecting means.
The end is provided with an electromagnet whose tip is convex,
The tip of the chamber has a concave shape corresponding to the tip of the electromagnet.
The metal block provided is provided.
3. The mechanical parking device according to claim 2.