JP3157783B2 - Multi-stage 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 hoisting chain which is wound up when an upper pallet is raised, is automatically folded side by side with a certain length, so that the chain hangs for a long time or the chains are entangled with each other. The present invention relates to a multi-stage parking device that effectively prevents the above.

[0002]

2. Description of the Related Art In the case of a conventional multi-stage parking device,
As means for raising and lowering the upper pallet, for example, FIG.
As shown in (a) and (b), the drive motor 101 is
02 is fixedly mounted on the rear frame 102b, and a drive shaft 103 is horizontally provided along the rear frame 102b at a position above the rear frame 102b.
5 and a wire drum 109 is provided at both ends of the drive shaft 103. By rotating the drive shaft 103, the wire 108 having one end connected to the pallet 107 is connected to the wire drum 109. Methods of winding up are known.

However, in this conventional apparatus, a wire drum 109 and a drive motor 101 having a relatively large volume are arranged on a rear frame 102b of a holding frame 102, and the length (depth) of the space of the vehicle storage space is limited. Since the length of the pallet is determined in consideration of the dimensions of the wire drum 109 and the like, there is a problem that a sufficient installation space is required to install such a conventional apparatus.

As means for reducing the length (depth) dimension of the vehicle storage space, a lifting chain and a hoisting sprocket are used instead of the wire 108 and the wire drum 109 constituting the above-described conventional apparatus. There is a method of raising and lowering the upper pallet by raising and lowering the hoisting chain with a hoisting sprocket. In general, the suspended lifting chain is housed in a chain bag provided thereunder.

[0005] However, if the hoisted hoisting chain hangs downward for a long time, the hoisting chain may be caught by the surrounding device members, which may cause a failure of the hoisting chain. In the case of a configuration in which the chains are stored in a bag, the stored chains may become entangled in the chain bag and the chain may not be able to be smoothly taken in and out. If the hoisting chain is forcibly pulled out of the chain bag, an unexpected acting force such as a torsion force is applied to the chain, and in the worst case, the chain may be broken.

In particular, such a phenomenon is more likely to occur remarkably as the lifting distance of the upper pallet becomes longer, in other words, as the length of the lifting chain becomes longer.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to automatically fold a part of a hoisting chain which is rolled up when raising an upper pallet side by side to a certain length, so that the rolled chain can be folded. It is an object of the present invention to provide a multi-stage parking device capable of effectively preventing a long hanging or chain entanglement.

[0008]

In order to achieve the above object, a multi-stage parking device according to the present invention is located on a reference plane,
At least one lower pallet that can be moved in the lateral direction
A lower vehicle storage portion arranged leaving a space for the pallet, and a lower pallet and / or located above the space,
A holding frame, and an upper vehicle storage portion provided with an upper pallet supported by the holding frame and being movable up and down between a holding frame position and a reference plane position, and fixed to a rear portion of one side frame of the holding frame. A first drive shaft interlocked with the first drive means is disposed laterally above and above the rear frame of the holding frame, and two hoisting sprockets having the same radius of rotation are provided at both ends of the first drive shaft. First and second lifting chains fixedly connected and having one end fixedly connected to both front and rear portions of both sides of the upper pallet are disposed on side frames of a holding frame located above the one ends. By turning around the corresponding hoisting sprocket via the direction changing means, the other end of the hoisting chain is fixedly connected to the holding frame, and the first drive shaft is rotated in two forward and reverse directions. In multistage parking device made by lifting the upper pallet, the portion of the lifting chain is wound by the winding sprockets, a chain hanger fixedly connected at a predetermined interval is provided,
A tip side portion disposed around an engagement portion between the hoisting chain and the hoisting sprocket, and guiding movement of a chain hanger accompanying hoisting of the hoisting chain;
A chain hanger support fitting, which is located below the hoisting sprocket and has a distal end portion that aligns the chain hanger guided by the distal end portion in a line, is fixedly mounted on the holding frame.

It is more preferable that a chain separator for forcibly releasing the engagement between the hoisting chain and the hoisting sprocket is provided below the hoisting sprocket.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a multi-stage parking device according to the present invention. FIG. 1 is a front view and FIG. 2 is a side view. In the figure, 1 is a parking device, 2 is a lower vehicle storage portion, 3 to 5 are upper vehicle storage portions, 6 is a reference plane, 8 is a lower pallet, 14 is a holding frame, 15 is an upper pallet, and 17 is a column. , A is a vehicle.

The parking device 1 shown in these figures is a four-stage parking device on the ground, and includes a lower vehicle storage unit 2 and upper vehicle storage units 3 to 5.

The lower vehicle storage section 2 is located on the reference plane 6,
At least one lower pallet 8 movable in a lateral direction 7
Having. Note that the reference plane 6 here specifically means the ground surface.

The lower pallet 8 is disposed in the lower vehicle storage section 2 while leaving a space for one pallet. In FIG. 1,
Although the case where one lower pallet 8 is arranged in the lower vehicle storage part 2 for two pallets is shown, in the present invention,
In the lower vehicle storage part 2 for N pallets, at most N-1
A lower pallet 8 of sheets can be provided.

As means for moving the lower pallet 8 in the lateral direction, for example, the lower pallet 8 is moved to the front end 9 and the rear end.
As shown in FIG. 2, two or more (two in FIG. 1) driving rollers 11 provided on the first rail 12 provided on the front and rear reference surfaces 6 of the lower pallet 8 are respectively provided. , And at least one of the drive rollers 11 is linked to a brake-equipped geared motor 13 fixed to the rear corner of the lower pallet 8 so that the drive roller 11 rolls on the first rail 12. It is preferable to configure as follows.

The upper vehicle storage sections 3 to 5 are provided with a lower pallet 8
And / or the holding frame 14a located above the space
14c and upper pallets 15a to 15c. The upper pallets 15a to 15c are supported by the holding frames 14a to 14c, and can be moved up and down between the holding frame position and the position of the reference surface 6.

FIG. 1 shows a case in which three upper-stage vehicle storage units 3 to 5 are arranged above the lower-side vehicle storage unit 2. In the present invention, at least one upper-stage upper vehicle storage unit 3 is provided. It is intended for two-stage or higher parking devices with storage units.

However, in the case of a three-stage or higher parking device,
Upper pallet 15c located in upper vehicle storage section 5 at the top
In order to be able to move up and down between this position and the position of the reference plane 6, the other holding frames 14a, 14b and upper pallets 15a, 15b located in the upper vehicle storage sections 3, 4 are:
It is necessary to move the upper pallet 15c laterally to a position where the upper pallet 15c does not hinder the lifting and lowering.

Holding frames 14a, 14b and upper pallet 15
As means for moving a, 15b in the lateral direction, it is preferable to make the holding frames 14a, 14b movable. For example, in the case of a four-stage parking device shown in FIG. Each holding frame located in the vehicle storage sections 3 and 4 above the eyes
Two or more (two in FIG. 1) drive rollers 16a and 16b provided on the front and rear frames of 14a and 14b, respectively, are fixed on the ground surface on both front sides and rear sides of the holding frames 14a and 14b. Are arranged on the second and third rails 18a and 18b, respectively, laterally provided between the supporting columns 17 (four in FIG. 1), and at least one of the driving rollers 16a and 16b is attached to each of the holding frames 14a and 14b. It is preferable to move the holding frames 14a, 14b and the upper pallets 15a, 15b in the lateral direction by interlocking with the geared motors 19a, 19b with brakes fixed to the front of one side frame.

Since the upper pallet 15c located in the uppermost upper vehicle storage section 5 only needs to be able to ascend and descend at least, the holding frame 14c is formed as a fixed frame in FIG. The holding frames 14a and 14b located in the upper vehicle storage sections 3 and 4 in the third stage can be configured to be movable.

As means for raising and lowering the upper pallets 15a to 15c, geared motors 20a to 20c with brakes, which are first driving means, respectively fixed to the rear portions of one of the holding frames 14a to 14c, are fixed. The first drive shafts 21a to 21c, which are respectively linked with these, are held by the holding frame 14a.
1414C, and the first drive shaft
At both ends of 21a to 21c, two hoisting sprockets 22a to 22c and 23a to 23c each having the same radius of rotation.
The first and second lifting chains 24a to 24c and 25a to 25c, one ends of which are fixedly connected to the front and rear portions on both sides of the upper pallets 15a to 15c, respectively, are attached to the holding frame 14a located above each one end 27. Through the first direction changing means 26a to 26c such as idlers arranged on the side frames of the corresponding hoisting sprockets 22a to 22c and 23, respectively.
a to 23c, and the other end 28 of the lifting chain is fixedly connected to the holding frames 14a to 14c, respectively, and the first drive shafts 21a to 21c are rotated in two forward and reverse directions.

The main feature of the present invention is that, as shown in FIG. 5, a chain hanger fixedly connected to a part of the hoisting chains 24, 25 wound by hoisting sprockets 22, 23 at a predetermined interval L. 29 (see FIG. 3), which is arranged around the engagement portion between the hoisting chains 24, 25 and the hoisting sprockets 22, 23, and guides the movement of the chain hanger 29 accompanying the hoisting of the hoisting chains 24, 25. A distal end portion which is located below the distal end portion 30 and the hoisting sprockets 22 and 23 and aligns the chain hanger 29 guided by the distal end portion 30 in a line.
The present invention is to fix a chain hanger support bracket 32 having a base 31 to the holding frame 14.

FIG. 3 is a side view of a state in which the upper pallet 15c located in the uppermost upper vehicle storage section 5 is lowered to reach the position of the reference plane 6, and the first pallet 15c is in this state. And the arrangement positions of the chain hangers 29 provided on the second lifting chains 24 and 25.
FIG. 4 shows a state of the chain hanger 29 fixedly connected to the lifting chains 24, 25.

The spacing L between the chain hangers 29 is determined by the length of the distal end portion 31 of the chain hanger support bracket 32,
The length is determined in consideration of the length l when the lifting chains 24, 25 are folded on the chain hanger support bracket 32, and the like. The length l when the hoisting chain is folded is half the length L of the chain hanger 29.

The tip end portion 30 of the chain hanger support bracket 32 is formed with a convex curvature so as to extend around the engagement portion between the hoisting chains 24, 25 and the hoisting sprockets 22, 23. The side portion 31 is such that the folded lifting chains 24, 25 are aligned in a horizontal row, so that the folded lifting chains are located in the idle space below the winding sprockets 22, 23. In this case, the distal end portion 31 is formed to have a convex curvature opposite to the distal end portion 30, and the chain hanger support bracket 32 has an S-shape (in FIG. 5, The S-shape is facing down.)
Is more preferable.

The tip side of the chain hanger support bracket 32
Numeral 30 is a portion where the chain hanger 29 first fits into the support bracket 32, and in order to facilitate this fitting, the tip portion 30a is formed to have a sharp shape such as a conical shape. Preferably, and more preferably, as shown in FIG. 7, the upper part of the conical shape is further flattened off.

The chain hanger support bracket 32 needs to be disposed at an appropriate position in relation to the hoisting sprockets 22 and 23 at the tip end portion 30 thereof. That is, if the arrangement position of the chain hanger support bracket 32 is not appropriate, the hoisting chains 24, 25 are extremely pressed against the hoisting sprockets 22, 23 by the support bracket 32, or conversely, the hoisting chain Since the pull-up sprockets 22, 23 are used to pull up the hoisting chains 24, 25 smoothly, as a result, the hoisting chains 24, 25 are smoothly wound up by the hoisting sprockets 22, 23. It is not possible.

Therefore, the chain hanger support bracket 32 is
The lifting chains 24 and 25 are disposed at positions where the engaging portions are appropriately pressed, and the lifting chains
It is preferable to maintain a secure engagement between the hoisting sprockets 22, 23 and the hoisting sprockets 22, 23.

As described above, in the present invention, by adopting the above configuration, the upper pallets 15a to 15c
Hoisting chain 24,2
By automatically folding the portion 5 side by side to a certain length and multiple layers, it is possible to effectively prevent the wound chains 24, 25 from hanging down for a long time and the chains 24, 25 from becoming entangled with each other.

When the hoisting chains 24, 25 are hoisted by the hoisting sprockets 22, 23, these engagements are normally released when they reach the lower positions of the hoisting sprockets 22, 23. Due to various conditions of use, the engaged state may not be released even when the lower position of the hoisting sprockets 22 and 23 is reached, such as when the hoisting chains 24 and 25 are wound around the hoisting sprockets 22 and 23. This is not preferred.

Therefore, in such a case, as shown in FIGS. 1 and 7, the engagement between the hoisting chains 24, 25 and the hoisting sprockets 22, 23 is located below the hoisting sprockets 22, 23. It is preferable to dispose a chain separator 33 for forcibly canceling.

The above description is only an example of the embodiment of the present invention, and various changes can be made within the scope of the claims.

For example, the lower pallet 8 and the upper pallet
As shown in FIG. 6, if the tip member 35 is bolted to the front end sides of these pallets 8 and 15 with an elastic body 34 such as rubber interposed therebetween, as shown in FIG. Even when the front end sides of the pallets 8 and 15 are raised, the tip member 35 is elastically deformed when the vehicle is taken in and out, so that the tip member 35 can be reliably brought into contact with the reference surface 6. Can be easier.

Although FIG. 1 shows the case of a two-row four-stage system, the number of stages and the number of columns can be appropriately changed as necessary. In this case, it is only necessary to adopt the same structure as the conventional apparatus for elevating and lowering the pallet underground.

[0034]

According to the present invention, the hoisted chains 24 and 25 are automatically folded side by side and multiple times at a certain length when the upper pallet is raised. It is possible to effectively prevent the chain from hanging down for a long time and the chains 24 and 25 from being entangled with each other.

Further, in the parking device of the present invention, unlike the conventional device, it is not necessary to dispose a wire drum having a relatively large volume at the rear position of the upper pallet. The size can be reduced,
As a result, it can be installed in a relatively narrow space.

[Brief description of the drawings]

FIG. 1 is a front view of a multi-stage parking device according to the present invention.

FIG. 2 is a right side view of the parking device shown in FIG.

FIG. 3 is a right side view when a right half of the parking device shown in FIG. 1 is extracted.

FIG. 4 is a diagram showing a positional relationship of a chain hanger.

FIG. 5 is a diagram showing a positional relationship between a hoisting sprocket, the hoisting chain provided with a chain hanger and a chain separator, and a chain hanger support bracket.

FIG. 6 is a view showing a modification of the tip members of the upper and lower pallets.

FIG. 7 is a view showing a modification of the chain hanger support bracket.

8A and 8B show a conventional parking device, in which FIG. 8A is a side view, and FIG. 8B is a front view when an upper-side vehicle accommodating portion located at the uppermost stage is extracted.

[Explanation of symbols]

 1 Parking device 2 Lower vehicle storage 3 to 5 Upper vehicle storage 6 Reference surface (ground surface) 7 Pallet lateral direction 8 Lower pallet 9 Front end of lower pallet 8 10 Rear end of lower pallet 8 11 Drive roller 12 First rail 13 Geared motor with brake 14,14a-14c Holding frame 15,15a-15c Upper pallet 16a, 16b Drive roller 17 Support 18a Second rail 18b Third rail 19a, 19b Geared motor with brake 20,20a , 20b, 20c First drive means 21,21a, 21b, 21c First drive shaft 22,22a-22c, 23,23a-23c Hoisting sprocket 24,24a, 24b, 24c First lifting chain 25,25a, 25b, 25c Second lifting chain 26,26a, 26b, 26c First direction changing means 27 One end of lifting chain 24,25 28 The other end of lifting chain 24,25 29 Chain hanger 30 Tip part of chain hanger support bracket 31 Chain hanger End of support bracket 32 Chain hanger support Fixture 33 Chain separator 34 Elastic body 35 Tip member

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-9-170349 (JP, A) JP-A-1-169524 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04H 6/06

Claims (2)

(57) [Claims] 1. A lower vehicle pallet, wherein at least one lower pallet, which is located on a reference plane and is movable in a lateral direction, is disposed leaving a space for one pallet, and a lower pallet. And / or an upper vehicle storage portion, which is located above the space, and is provided with a holding frame, and an upper pallet supported by the holding frame and capable of moving up and down between the holding frame position and a reference plane position, A first drive shaft interlocked with a first drive means fixed to the rear portion of one side frame of the holding frame is horizontally provided above and above the rear frame of the holding frame, and at both ends of the first drive shaft, Attaching two hoisting sprockets having the same turning radius,
First direction changing means in which first and second lifting chains, one ends of which are fixedly connected to both front and rear portions of both sides of an upper pallet, are disposed on side frames of a holding frame respectively located above the one ends. Through the corresponding hoisting sprocket, and the other ends of the hoisting chains are fixedly connected to the holding frames, respectively.
In a multi-stage parking device in which an upper pallet is raised and lowered by rotating a drive shaft in two forward and reverse directions, a chain hanger fixedly connected at a predetermined interval to a portion of the hoisting chain wound by the hoisting sprocket. A tip side portion disposed around an engagement portion between the hoisting chain and the hoisting sprocket, and guiding movement of a chain hanger accompanying hoisting of the hoisting chain,
A multi-stage parking device, wherein a chain hanger support bracket having a chain hanger guided by the front end portion and located at a lower end portion arranged in a line is fixed to the holding frame. 2. In a lower position of the hoisting sprocket,
2. The multi-stage parking device according to claim 1, further comprising a chain separator that forcibly releases the engagement between the hoisting chain and the hoisting sprocket.