JP3061535B2 - Travel drive structure of frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for driving a frame. Specifically, for example, the present invention relates to a low-cost traveling drive structure that is used for a multi-story parking device and that allows a frame supporting a vehicle to move stably on rails.

[0002]

2. Description of the Related Art As a multi-story parking device for effectively utilizing a limited parking lot site in response to a shortage of a parking lot due to a recent increase in vehicles, a rise in land prices, etc., parking spaces are provided vertically and horizontally. There is known a multi-stage parallel multi-story parking device.

As an example of such a parking device, upper and lower 3
FIG. 5 shows a configuration in which parking spaces are continuously provided in four rows and left and right rows.

In the uppermost parking spaces S31 to S34, pallets P31 to P34 for vehicles are provided so as to be able to move up and down. In the middle-stage parking spaces S21 to S24, the number of in-vehicle pallets P21 to S23, which is smaller in principle by one than the number of rows of parking spaces (four in FIG. 5), is provided so as to be able to move up and down and traverse. In the lowermost parking spaces S11 to S14, in-vehicle pallets P11 to P13, which are in principle smaller by one than the number of rows of parking spaces, are provided so as to be able to traverse.

In each of the parking spaces S, the pallets P are raised and lowered or traversed as appropriate, so that vehicles can be put in and out of the lowermost parking spaces S11 to S14.

The intermediate-stage parking space S2 (S21 to S21)
FIG. 6 shows an example of a schematic structure of a main part for the vertical movement of the pallet P2 (P21 to P23) in 24).

In FIG. 6, reference numeral 5 denotes a transverse frame as a frame formed by connecting steel square pipes in a rectangular shape. The traversing frame 5 is formed to have a width and a length that allow the vehicle C to be parked to pass up and down.

[0008] Traveling wheels 6a to 6d are respectively attached to the lower surfaces of the four corners of the traversing frame 5 substantially. These rolling wheels 6a to 6d
The support frame (not shown) is supported in the front-rear direction (the horizontal frame 5).
(A direction coinciding with the longitudinal direction). A traversing motor 7 is connected to one of the rolling wheels 6a to 6d as a prime mover for applying a rotational driving force to the rolling wheel 6a.

The traversing frame 5 is provided with traversing rails 8, which are provided in parallel in the front-rear direction so as to extend in the left-right direction.
8 are respectively disposed in the intermediate-stage parking space S2 such that the wheels 6a to 6d engage with each other. As described above, the number of arrangement is one less than the number of columns. Each of the traversing frames 5 runs on the traversing rail 8 by the driving force of the traversing motor 7.

Each of the transverse frames 5 is assigned a rectangular pallet P2 on which a vehicle is mounted. The pallet P2 is, for example, formed by forming a bent portion 4 for reinforcement extending in the longitudinal direction on a steel plate having an appropriate thickness. The pallet P2 has a width and length necessary for mounting the vehicle C. Is configured.

One end 10a, 10 of an elevating chain 10, 10, 11, 11 for moving the pallet P2 up and down is provided at the front and rear sides of the left and right sides of the pallet P2.
a, 11a, 11a are fixed. These elevating chains 10, 10, 11, 11 are respectively wound around elevating sprockets 16, 16, 17, 17 attached to the left and right frame portions 5c, 5c of the respective traversing frames 5, and It is extended behind the traversing frame 5. Each of the elevating chains 10, 10, 11, 11
Are wound from the upper side one by one on hoisting drive sprockets 12 provided at the rear left and right of the transverse frame 5 respectively. The free ends 10b, 10b, 11 of the respective lifting chains 10, 10, 11, 11
b and 11b sides are chain storage boxes 13 and 13 provided one by one on the left and right, respectively, just below the hoisting drive sprocket 12.
It is housed hanging inside.

The hoisting drive sprockets 12 are fixed to the left and right ends of a hoisting drive shaft 14 rotatably supported in the left and right direction at the rear of the transverse frame 5. . The hoisting drive shaft 14 is linked to a forward / reverse rotatable hoisting motor 15 disposed on the rear frame 5b of the traversing frame 5.

The hoisting drive sprocket 1
2 winds or unwinds each of the elevating chains 10, 10, 11, 11 by the reversible rotation of the hoisting drive shaft 14 accompanying the operation of the hoisting motor 15,
The pallet P2 is raised and lowered.

[0014]

In the traversing frame 5 having the above-described structure, the four rolling wheels 6a to 6b are used from the viewpoint of economy.
Only one of the driving wheels 6d is the driving wheel 6a, and the other three rolling wheels are the driven wheels (free wheels) 6b to 6d.

For this reason, conventionally, the traversing frame 5
, And there is a risk that the wheels 6a to 6d may come off the traversing rail 8.

If the traversing rail 8 gets wet with rain or leaves of trees are caught between the rail 8 and the driving wheel 6a, the driving wheel 6a and the rail 8
And the predetermined frictional force cannot be obtained between
In some cases, the idle rotation of a causes the traversing frame 5 to become unable to travel.

In order to eliminate such a drawback, of the rolling wheels 6a to 6d, two rolling wheels (for example, 6a and 6d) arranged in the front-rear direction (longitudinal direction) of the traversing frame 5 are moved in the front-rear direction. It is also conceivable to connect them with an extended drive shaft and drive this drive shaft with one traversing motor. In this way, the demand for stable and reliable running of the traversing frame 5 can be met.

However, in this case, there is a problem in the space for providing the drive shaft and the traversing motor. That is, since the vehicle C riding on the pallet P2 rises in the traversing frame 5, it is not possible to provide a protruding object as an obstacle. In addition, since the elevating chains 10 and 11 are already provided along the traversing frame 5, it is difficult to further provide the drive shaft in terms of space, which leads to a significant increase in cost. was there.

The present invention has been made in view of the above circumstances, and enables the frame to run stably and reliably, prevent accidents such as derailing, and is easy to assemble and low in cost. It is an object of the present invention to provide a driving mechanism for driving a frame.

[0020]

According to the present invention, there is provided a traveling drive structure according to the present invention.
One of the wheels that supports the body so that it can run on rails
To form a driving wheel, and the driving wheel and the frame
The endless chain drives the rolling wheels lined up in the row direction
In the middle of the endless chain in the tension direction.
A tension that engages and applies a predetermined tension to the endless chain
An application sprocket is provided on the frame.

A traveling drive system according to the present invention as set forth in claim 2 is provided.
The frame should be open inside so that it can pass up and down
Has rolling wheels that support the body so that it can run on multiple rails
In the thing, the rolling wheels lined up along one side in the traveling direction
Sprockets on the pivot shaft adjacent to the wheels
And attach these sprockets with an endless chain.
And the endless chain
One of the wheels is connected to the prime mover, and the other
It is a free wheel, and it is located almost in the middle of the tension direction of the endless chain.
A tension that engages and applies a predetermined tension to the endless chain
An application sprocket is provided on the frame.

The traveling of the frame according to the present invention according to claim 3
The driving structure according to claim 1 or 2,
The tensioning sprocket is tensioned with the endless chain.
The position can be adjusted so that can be adjusted freely
It is.

The traveling of the frame according to the present invention described in claim 4
The drive structure according to claim 1, 2 or 3.
A supporting member for supporting the tension imparting sprocket.
The support member is provided in a vertical direction for adjusting its vertical position.
And a bolt extending through the elongated hole.
It is fixed to the frame.

The traveling of the frame according to the present invention according to claim 5.
The drive structure keeps the inside open so that it can pass through up and down
Rollers that support the frame to be run on multiple rails
In those having, arranged along one side of the traveling direction
Sprockets are placed on the pivots of the wheels adjacent to the wheels.
Attach these sprockets to the endless chain
Connected with each other with this endless chain.
One of the wheels is connected to the prime mover, and the other
The ring is a free ring, and it is almost in the tension direction of the endless chain.
The tension imparting sprocket that meshes with the
Is urged to apply a predetermined tension to the
is there.

The traveling of the frame according to the present invention according to claim 6.
The driving structure is as described in any one of claims 1 to 5.
Abutting against the guide surface along the rail,
A guide rotating body for guiding the running operation of the body is provided on the frame body.
Things.

[0026]

According to the first aspect of the present invention, the driving wheel is driven by the operation of the prime mover, and at the same time, the driving wheel is connected to the driving wheel by an endless chain while being driven along the traveling direction of the frame. The side-by-side wheels are driven.

As described above, since the driving force of the prime mover is applied to the rolling wheels arranged along the traveling direction of the frame, the frame travels more stably and reliably than the conventional one-wheel drive system. .

Then, in the tension direction of the endless chain,
The front with a tensioning sprocket that meshes with
Since a predetermined tension is applied to the endless chain,
There is no danger of the end chain coming off.

According to the second aspect of the present invention,
Of the endless chain through the sprocket
The wheels that are aligned along one side in the direction of travel of the frame are driven
This causes one side of the frame to be pulled
Then, the other free wheel also rolls, and the frame is attached to the rail.
Drive along.

The sprocket moves in the direction of travel of the frame.
One side of a rolling wheel arranged along one side
Because it is attached in contact with the sprocket,
The endless chain also passes through the inside of the frame body up and down.
It doesn't get in the way.

Also, the endless chain is engaged with the endless chain.
A tensioning sprocket that applies a predetermined tension to the end chain
A support attached to the frame so as to be vertically adjustable.
Because it is supported by the holding member,
By adjusting the vertical position of the support member, the endless
The tension of the chain can be adjusted.

According to the present invention as set forth in claim 2, the above-mentioned aspect
With tension that meshes with almost the middle part of the tension direction of the endless chain
A predetermined tension is applied to the endless chain by a given sprocket.
Since the force is applied, the endless chain may come off.
There is no steep.

According to the present invention as set forth in claims 3 and 4,
For example, to adjust the position of the tension imparting sprocket
Thus, the tension of the endless chain can be freely adjusted.

According to the fifth aspect of the present invention, an endless cable is provided.
Even if the chain grows slightly, adjust the tension each time.
There is no need to save.

Further, according to the present invention as set forth in claim 6,
If the guide rotator contacts the guide surface along the rail,
Guides the running motion of the frame body,
Even when driving only the side, it is not possible to remove the wheel from the rail.
No.

[0036]

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

An example of the application of the traveling drive structure of the frame according to one embodiment of the present invention has already been described in the section of the prior art, and here, only the characteristic portions of the present invention will be described in detail. State.

FIG. 1 is a schematic perspective view of an essential part showing an embodiment of the present invention. The structure for raising and lowering the pallet P2 is the same as that already described with reference to FIG. 6, and is not related to the gist of the present invention, and therefore, description and illustration are omitted.

In FIG. 1, reference numeral 20 denotes a horizontal frame as a frame. The transverse frame 20 is formed by, for example, combining steel square pipes in a rectangular shape and firmly fixing them.

The traversing frame 20 has rolling wheels 21a, 21b, 21c and 21d substantially at the lower portions of four corners.
These rolling wheels 21a to 21d are connected to the traversing frame 20.
Have rotation support shafts 22a to 22d extending in the longitudinal direction. The traversing frame 20 is provided with the wheels 21a-21.
d, and two front and rear parallel rails 23, 24 extending horizontally in the lateral direction of the traversing frame 20.
It runs on the left and right directions.

One of these rails 23, 24 is made of equilateral angle steel, and is laid so that its top side faces upward. On the other hand, the other rail 23
Is a rail with a flat top.

The rails 23, 24 are fixed on grooved steels 25, 26, respectively, which are disposed with the groove portions facing downward, and these grooved steels 25, 26 are H-shaped steels 27, 28.
Are fixed on the top. These H-beams 27,
28 is a cross beam member which partitions the multi-story parking device shown in FIG. 5 to form an intermediate step.

The first and second rolling wheels 21a and 21b on one side in the traveling direction of the four rolling wheels 21a to 21d are:
In order to fit the rail 24 made of equilateral angle iron,
It has an equilateral valley-shaped groove 29 on its outer periphery. On the other hand, the third and fourth rolling wheels 21c and 21d on the other side in the traveling direction are
It is a flat wheel with a flat outer peripheral surface.

An output shaft 31 of a traversing drive electric motor 30 as a prime mover is connected to the rotation support shaft 22a of the first wheel 21a. The motor 30 is provided close to a corner of the traversing frame 20 and is mounted on the pallet P2 in order to widely open the inside of the traversing frame 20 so that the vehicle C can pass up and down. Care is taken so that the vehicle C is not obstructed when the vehicle C is stored in the traversing frame 20.

The first wheel 21a and the second wheel 21b arranged along the traveling direction of the transverse frame 20
Are sprockets 32 and 33 as transmission means and endless chains.
The first wheel 21a and the driving wheel
Are linked.

That is, the key 3 is placed on the rotating support shaft 22a of the first wheel 21a so as to be adjacent to the first wheel 21a.
5 is used to fix the first sprocket 32 (see FIG. 2). Similarly, the pivot 22b of the second wheel 21b
Above, the second sprocket 33 is fixed using a key (not shown) adjacent to the second wheel 21b. These sprockets 32 and 33 are connected to the respective rotation support shafts 22.
a, 22b are located at positions corresponding to each other and are of the same shape and size.

The sprockets 32 and 33 may be provided inside or outside the rail 24. In the illustrated example, the sprockets 32 and 33 are provided inside the rail 24 in order to minimize the protrusion to the outside. I have. Each sprocket 3
Since the wheels 2 and 33 are provided adjacent to the first and second wheels 21a and 21b, even if they are provided inside the rail 24, they do not hinder the elevation of the vehicle C.

The first and second sprockets 32, 3
3, the endless chain 34 is wound around. As the endless chain 34, a roller chain is employed from the viewpoint of reducing friction.

The endless chain 34 is meshed with an idle sprocket 36 at a substantially middle portion in the tension direction. The idle sprocket 36 applies a predetermined tension to the endless chain 34 so that each of the sprockets 3
Acts as a tension imparting sprocket for preventing disengagement from 2, 33.

In the illustrated example, the idle sprocket 36 meshes with the tension side of the endless chain 34 from below, and pulls the tension side upward to apply a predetermined tension.

The idle sprocket 36 is supported at the lower end of a vertically extending support member 37, and the upper end of the support member 37 is attached to the traversing frame 20 so that the vertical position can be adjusted. For example, a vertically long hole 38 is provided above the support member 37. Then, the vertical position of the idle sprocket 36 is determined so that a predetermined tension is generated in the endless chain 34, and the support member 37 is bolted with a bolt 39 inserted into the elongated hole 38.
May be fixed to the traversing frame 20.

Further, as another means for applying a predetermined tension to the endless chain 34 using the idle sprocket 36, a biasing means may be connected to the idle sprocket 36. For example, an idle sprocket 36 is engaged with the tension side of the endless chain 34 from below, and a vertical tension spring (not shown) is connected to both ends of a support shaft of the idle sprocket 36, so that the idle sprocket 36 is always connected. It is urged to pull up with a predetermined strength. In this case, since tension is always applied to the endless chain 34, even if the endless chain 34 slightly expands, it is not necessary to adjust the tension each time. In this respect, it is more convenient than the case where the idle sprocket 36 is fixed so that the position can be adjusted.

The third and fourth wheels 21c, 21d
Is a free wheel. These wheels 21c, 21
When one side of the traversing frame 20 is pulled by the driving of the first and second rolling wheels 21a and 21b, d moves on the rail 23 and runs the traversing frame 20 accordingly.

The fourth wheel 21d may be omitted, and only one third wheel 21c may be provided at the middle of the transverse frame 20 in the left-right direction.

The traverse frame 20 has the rail 2
Guide rotators 40a, 40b, which contact the guide surfaces along 3, 3 to guide the running operation of the traversing frame 20,
40c and 40d are provided. In the illustrated example, these guide rotating bodies 40a to 40d
Are provided at substantially the four corners of the grooved steel so as to abut against the inner surfaces of the grooved steels 25 and 26 as guide surfaces.

The guide rotating bodies 40a to 40d include:
For example, a roller having the support shafts 41a to 41d directed vertically is used. These rollers 40a to 40d
It is fixed to the traversing frame 20 so as to be able to freely adjust the approach and the separation to the inner surface side of the channel steel 25, 26. In the normal state, the rollers 40a to 40a
The position is adjusted and fixed so that a slight gap is formed between 40d and the inner surfaces of the grooved steels 25 and 26 (see FIG. 4).

The rollers 40a to 40d may be provided so as to come into contact with the outer surfaces of the channel steels 25 and 26.

The traveling drive structure for the frame according to the present embodiment having the above-described structure operates as follows.

When the motor 30 operates, the first wheel 21a is driven in the traveling direction. The driving force of the first wheel 21a is transmitted to the second wheel 21b via the first sprocket 32, the endless chain 34, and the second sprocket 33. As a result, the driving force of the motor 30 is
a, 21b, and a driving force on the rail 24 acts on one side of the traversing frame 20. Accordingly, the other side of the traversing frame 20 is pulled, and the third and fourth rolling wheels 21c and 21d are moved to the rails 23.
The traversing frame 20 runs while rolling on the upper side.

As described above, according to the present embodiment,
Since the driving force of the motor 30 is distributed to one side of the traversing frame 20 and acts, the traversing frame 20 is moved in comparison with the conventional method of driving only one wheel in one direction.
And stable and reliable traveling of the vehicle can be achieved. In particular, the stability when the traversing frame 20 starts to move is good, and the traversing frame 20 starts reliably without slipping. In addition, since the structure for power transmission is simple, the conventional transverse frame 20
Is easy to assemble, and the cost is low. Furthermore, the installation space for additional members for power transmission, such as the sprockets 32 and 33 and the endless chain 34, is not so required.

In this embodiment, the motor 3
Since the driving force of 0 is distributed to one side of the traversing frame 20 and works, the stability at the time of starting is good. Therefore, even if the rollers 40a to 40d as the guide rotating bodies are not provided, the rails 23 and 24 can be used. There is no problem such as wheel derailment,
The provision of the rollers 40a to 40d further enhances safety.

[0062]

According to the present invention, stable and reliable traveling drive of the frame can be performed at low cost.

Further , a predetermined tension is applied to the endless chain.
Tension sprockets, the endless chain
There is no problem such as the chain coming off.

Further, the position of the tension applying sprocket
By adjusting the universal tension of the continuously Tanchi En
Can be adjusted.

When the tension imparting sprocket is attached to the endless chain
Depending on what is biased to give a certain tension
For example, even if the endless chain is slightly extended,
There is no need to adjust the tension each time.

According to the one provided with the guide rotating body,
There is no danger of derailing.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a main part showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a partial view taken along the arrow III in FIG. 1;

FIG. 4 is a sectional view taken along line IV-IV in FIG. 3;

FIG. 5 is a schematic front view showing a multi-story parking device as an example of an application target of the present invention.

FIG. 6 is a schematic perspective view showing a conventional example.

[Explanation of symbols]

Reference Signs List 20 Frame body 21a to 21d Rolling wheel 22a, 22b Rotating support shaft (of rolling wheel) 23, 24 Rail 25, 26 Guide surface 30 Motor 32, 33 Sprocket 34 Endless chain 36 Tension applying sprocket 37 Supporting member 38 Long hole 40a to 40d guide rotating body

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Narutoshi Hattori 3-1 Okawa, Kanazawa-ku, Yokohama-shi Tokyu Vehicle Manufacturing Co., Ltd. Parking Engineering Department (56) References JP-A-5-287929 (JP, A) Hei 2-5572 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04H 6/06 E04H 6/18 603

Claims (6)

(57) [Claims] 1. One of rolling wheels (21a to 21d) for supporting a frame (20) so as to be able to run on rails (23, 24) is connected to a motor (30) to form a driving rolling wheel. ,
This drive wheel (21a) and the wheel (21b) arranged along the traveling direction of the frame (20) are connected to an endless chain (3).
4) drively connected to each other in the endless chain (34).
The endless chain (3
4) A tension imparting sprocket (3) for imparting a predetermined tension to
6) A traveling drive structure of the frame , wherein the frame is provided on the frame (20) . 2. Rollers (21a to 21d) for supporting a frame (20) to be opened up and down so as to be able to run on a plurality of rails (23, 24). Rolling wheels (2
1a, 21b), sprockets (32, 33) are mounted on the pivots (22a, 22b) adjacent to the rolling wheels (21a, 21b), respectively, and these sprockets (32, 33) are connected to endless chains ( 34), one of the rolling wheels (21a, 21b) connected by the endless chain (34) is connected to the prime mover (30), and the other one of the rolling wheels (21a, 21b) is connected. 21c, 21
d) is a free wheel, and how to tension the endless chain (34)
To the endless chain (34)
A tensioning sprocket (36) for applying a predetermined tension
A traveling drive structure for the frame, which is provided on the frame (20) . 3. The tensioning sprocket (36) comprises:
The tension of the endless chain (34) can be adjusted freely.
3. The frame according to claim 1, wherein the position of the frame is adjustable.
Driving structure of the body. 4. A support for the tensioning sprocket (36).
A supporting member (37) for holding the supporting member (37).
Is a vertically extending slot for adjusting its vertical position.
(38) and a bolt inserted into the elongated hole (38)
The frame (20) is fixed to the frame (20).
4. The driving mechanism for driving a frame according to any one of 1, 2, and 3. 5. The interior is opened so that it can pass through up and down.
Frame (20) on a plurality of rails (23, 24)
It has wheels (21a to 21d) that support it so that it can run
The rolling wheels (2
1a, 21b) on the pivot (22a, 22b).
Sprockets adjacent to the wheels (21a, 21b)
(32, 33) and attach these sprockets
(32, 33) connected to each other by an endless chain (34)
And the wheels connected by the endless chain (34).
Drive one (21a) of (21a, 21b)
Machine (30), and the other one of the rolling wheels (21c, 21c).
d) is a free wheel, and how to tension the endless chain (34)
Tensioning sprocket (3
6) applies a predetermined tension to the endless chain (34).
Driving drive structure of the frame body, which is urged so that 6. A guide along said rails (23, 24).
Traveling of the frame (20) in contact with the sliding surfaces (25, 26).
The guide rotating body (40a-40d) for guiding the operation is
The body (20) according to any one of claims 1 to 5, wherein the body (20) is provided.
A traveling drive structure for a frame body according to the above item.