JPH05256041A - Vertical circulating type parking device - Google Patents

Abstract

PURPOSE:To obtain a highly reliable positioner having high durability by a method in which the projection of a hanger stay is coupled with the recession of a pallet by contacting their tapered abutment faces. CONSTITUTION:In a vertically circulating type parking device in which pallets 2 are taken up from a hanger stay 11 and turned by a pallet slewing device, a projection 16 having tapered abutment faces 16a and 16b on its both sides is formed in the hanger stay 11, and a recession 19 having flat-tapered abutment faces 17a and 17b on its sides is formed in the pallet 2. The contact faces 16a and 17a are made to abut on each other to couple the projection 16 with the recession 19 for positioning the hanger stay 11 and the pallet 2.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a vertical circulation parking system.

[0002]

2. Description of the Related Art In a vertical circulation type parking device, an endless chain is wound around sprockets arranged above and below, and a plurality of cages each having a pallet for mounting on a vehicle are arranged at predetermined intervals in a chain traveling direction on the chain. It is generally known that each pallet is circularly moved vertically by being attached and running a chain.

Further, in order to facilitate the loading and unloading of the vehicle onto and from the pallet, the pallet is mounted on the cage in a vertically detachable manner, while the pallet is placed below the bottom portion of the circulation path from the cage. It is also known that a pallet is equipped with a pallet revolving means for lifting a pallet and reversing it about a vertical axis to return it to its original state (see Japanese Patent Publication No. 63-17988). In this structure, as the positioning means between the pallet and the cage, a tapered locating pin protruding upward is provided in the pallet mounting portion of the cage, and a locating hole into which the locating pin is fitted is provided in the pallet. Further, the pallet and the swivel base of the pallet swiveling means are also provided with positioning means by means of similar pins and holes.

[0004]

However, when a vehicle is placed on the pallet, the pallet slightly bends or twists due to the weight of the vehicle, and when the pallet is used many times, the bending or twisting increases. In that case, the positional deviation between the positioning pin on the cage side and the positioning hole on the pallet becomes large, so that when the both start to be fitted, the contact portions of each other become point contacts. Then, since they are forcibly fitted in that state, the surface pressure of the contact portion becomes very high, and the positioning pin and the inner surface of the positioning hole are damaged such as abrasion.

As a result, there is a problem that the backlash between the positioning pin and the positioning hole becomes large, and thus the positional deviation between the pallet and the cage becomes large, that is, the originally intended positioning accuracy becomes low. Further, when such backlash occurs, the positioning pin and the inner surface of the positioning hole collide with each other in point contact due to vibration during the circulatory movement of the pallet, resulting in severe wear and damage of both.

[0006]

In order to solve such a problem, the present invention does not constitute the positioning means by the pin and the hole as described above, but makes a surface contact with the pallet base and the pallet such as the cage. The positioning means is provided.

That is, the means for solving the above-mentioned problems is to provide a plurality of pallet bases in which endless chains are wound around sprockets arranged above and below, and the pallets for vehicle mounting are mounted on the chains in a vertically detachable manner. The pallets are attached at a predetermined interval in the chain traveling direction, and are configured so that each pallet circulates vertically vertically as the chain travels, and at the top or bottom of this pallet circulation path, pallets are loaded from the pallet base above. A vertical circulation type parking device having a pallet turning means for turning upside down about a vertical axis and placing the pallet on a pallet stand, wherein one of the pallet and the pallet stand projects toward the other side and is flat on the side surface. A convex portion having a tapered contact surface is formed, and the above-mentioned taper is formed on the concave side surface so that the convex portion fits on the other side. Contact surface characterized in that the recess having a planar tapered abutting surface abuts is formed.

In this case, the convex portions are formed at the center portions in the left-right direction of the front and rear end portions of the pallet stand in the vehicle loading direction, and the left and right surfaces of the convex portion and the front and rear surfaces of the convex portion are formed. A taper abutment surface is formed on a surface of the pallet base facing the center, and the recessed portion is a vertical groove that extends downward in the pallet central portion and extends in the vehicle loading direction. In the front and rear end portions of the pallet formed by a partition member for partitioning the vertical groove in the front and rear, the left and right sides of the vertical groove, and the surface of the front and rear surfaces of the partition member facing the outer side of the pallet. A taper abutting surface formed on the surface is a suitable means for solving the above problems.

The pallet revolving means is provided below the lowermost portion of the pallet circulation path, projects upward from an opening formed in the central portion of the pallet base, and lifts the pallet from the pallet base to revolve it. And a flat taper abutment surface that abuts the taper abutment surface on the swivel base, while a flat taper abutment surface is formed on both side surfaces of the central portion of the vertical groove of the pallet. A surface is a suitable means for positioning between the pallet and the pallet turning means.

[0010]

In the case of each of the above means, the positioning of the pallet base and the pallet is made by the contact of the flat tapered contact surfaces with each other, so that the contact portions become surface contact, and even when the fitting is started, or slightly on the pallet. Even if there is deformation, at least line contact can be obtained, that is, the possibility of point contact as in the past is reduced, and the contact surface pressure becomes lower than that of the conventional one, so wear damage of the contact part It is advantageous in terms of prevention.

Further, in the case where the vertical groove at the center of the pallet is used to form the recesses for positioning at the front and rear ends thereof, the taper abutment surface of the vertical groove and the taper on both the left and right sides of the convex portion of the pallet base are formed. By the contact with the contact surface, the pallet and the pallet base are positioned in the left-right direction, and due to the contact between the tapered contact surface of the partition member and the tapered contact surface of the convex portion facing the center of the pallet base, Positioning of the pallet and the pallet base in the front-rear direction is performed. Then, since the vertical groove serves as a reinforcing means of the pallet, even if the pallet is deformed by the load of the vehicle or the like, the deformation of the recessed portion is small, and it is advantageous in preventing displacement of the recessed portion. Become. Also,
The partition member forming the recess also contributes to this deformation prevention.

Further, in the case where the vertical groove of the pallet is formed with a flat taper contact surface for positioning between the pallet and the swivel base, in the positioning between the pallet and the swivel base, the contact portion is formed. The effect of preventing wear damage of is obtained.

[0013]

Therefore, according to the present invention, since the pallet and the pallet base are provided with the positioning projection having the flat taper abutting surface and the positioning recess similar to the positioning projection, abrasion damage of the positioning means is prevented. However, it is possible to achieve highly reliable positioning that does not cause backlash for a long period of time.

Further, by using the vertical groove at the center of the pallet and the partition member to form the positioning recesses at the front and rear ends of the vertical groove, the deformation or displacement of the recess due to the load of the vehicle can be prevented. And is more reliable.

Further, according to the one in which the pallet and the pallet swivel are provided with the positioning means having the flat taper contact surface, the highly reliable positioning can be performed in the positioning between the pallet and the swivel. Can be expected.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. -Overall structure-In FIG. 1, 1 is a cage equipped with a pallet 2 for mounting on a vehicle, and 3 is a pallet circulating means for vertically circulating a large number of cages 1. The pallet circulation means 3 is formed by winding an endless chain 6 around upper and lower drive sprockets 4 and driven sprockets 5, and each cage 1 is attached to the chain 6 at a predetermined interval in the chain traveling direction. The pallet turning means 7 is arranged below the lowermost portion of the pallet circulation path. The pallet revolving means 7 is provided with a lifting revolving base 8 that picks up the pallet 2 from the mounting portion of the cage 1 and revolves 180 degrees around the vertical axis. Further, the lowermost part of the pallet circulation path is formed in the entry portion 9 into which the vehicle W is put in for parking.

-Structure of Cage-In FIG. 2 showing the cage 1, 11 is a hanger stay (pallet base) on which front and rear end portions of the pallet 2 in the vehicle loading direction are detachably mounted vertically, and 12 is a front and rear hanger stay. A connecting stay for connecting both end portions of 11 to each other, 1
3 is a gate-shaped hanger that connects both ends of the hanger stay 11, 14 is a suspension shaft that is provided at the center of the upper part of the hanger 13 so as to extend in the vehicle loading direction, and is attached to the chain 6 via an attachment. Axis 1
It is a cage stay that connects 4, 14 together.

-Positioning Means- As shown in FIGS. 3 and 4, the hanger stay 11 is provided with a convex portion 16 whose central portion in the left-right direction upwardly protrudes in a trapezoidal shape. Flat tapered contact surfaces 16a, 16a are formed on the left and right side surfaces of 16 such that the convex section cross-sectional area increases toward the lower side and is inclined toward the end. In addition, the same planar taper contact surface 16b is also formed on one of the front and rear surfaces of the convex portion 16 facing the center of the cage.
Are formed. The lower surface side of the convex portion 16 is formed as a recess opening downward.

On the other hand, the pallet 2 has a vertical groove 17 which extends in the central portion of the pallet corresponding to the convex portion 16 over the entire length in the vehicle loading direction and opens downward, and the vertical groove 17 in the vicinity of both front and rear ends of the vertical groove 17. And a partition member 18 for partitioning the bottom portion of the partition into front and rear. The vertical groove 17 and the partition member 18 form recesses 19 at the front and rear end portions of the pallet 2 into which the projections 16 of the hanger stay 11 are fitted.

As with the taper abutment surface 16a of the convex portion 16, the left and right surfaces of the vertical groove 17 are tapered abutment surfaces 17 that are inclined so that the groove width becomes wider toward the bottom.
a is formed, and the front and rear surfaces of the partition member 18 facing the outside of the cage also have tapered contact surfaces 18a that are inclined similarly to the taper contact surface 16b of the convex portion 16. .. That is, the taper abutting surfaces 17a and 18a existing in the concave portion 19 of the pallet 2 come into contact with the taper abutting surfaces 16a and 16b of the convex portion 16 of the hanger stay 11.

When the pallet 2 is placed on the hanger stay 11, the taper abutting surfaces 16a, 1a of the convex portion 16 are provided.
Not only 6b, but also the top surface of the convex portion 16 and the upper surfaces on the left and right sides of the convex portion 16 are abutted.

-Pallet swivel base-As shown in FIG. 5, the swivel base 8 of the pallet swivel means 7 is provided with a convex portion 20 that fits into the vertical groove 17 of the pallet 2 and projects upward. Then, like the taper contact surface 17a of the vertical groove 17, a flat taper contact surface 20a is formed on the side surface of the convex portion 20, which is inclined toward the bottom as it goes downward and contacts the taper contact surface 17a. Are formed.

-Effects of Embodiment- Therefore, in this embodiment, when the vehicle W is stored,
By the operation of the pallet circulation means 3, the empty cage 1 is circulated and moved to the lowermost portion of the pallet circulation path, and the vehicle W at this portion.
Is placed on the pallet 2 of the cage 1. The vehicle W accommodated in the parking device is changed in direction when the entering / exiting work is stopped or when the leaving / exiting. That is, the vehicle W is called to the lowermost portion of the pallet circulation path by the operation of the pallet circulation means 3. Then, the swivel base 8 of the pallet swiveling means 7 rises from the lower surface opening of the cage 1 and the vehicle W
Is lifted together with the pallet 2 (see FIG. 6), turned 180 degrees around the vertical axis (see FIG. 7), and then lowered to lower the vehicle W together with the pallet 2 onto the hanger stay 11 of the cage 1. Therefore, when leaving the vehicle, the driver of the vehicle W moves the vehicle W in the cage 1 by moving forward in the same manner as when entering the vehicle.
You can embark from

However, when the turntable 8 rises when the vehicle W is turned, the convex portion 20 of the turntable 8 is raised.
It will be fitted in the vertical groove 17 of. Even if there is a lateral displacement between the pallet 2 and the swivel base 8 during this fitting,
The convex portion 20 has tapered contact surfaces 20a, 17a with respect to the vertical groove 17.
Since they are fitted to each other while they are in surface contact with each other, the contact surface pressure between them is low.

The same can be said when lowering the pallet 2 on the hanger stay 11 after the vehicle W is turned. That is, at that time, the pallet 2 and the hanger stay 1
Even if there is a displacement with respect to 1, the concave portion 19 of the pallet 2
Is to be fitted to the convex portion 16 of the hanger stay 11 while making the tapered contact surfaces 17a, 18a, 16a, 16b in surface contact with each other. In this case, the pallet 2 and the hanger stay 11 are laterally positioned by contact between the left and right tapered contact surfaces 16a, 17a, and the front and rear opposed taper contact surfaces 16b, 16b are positioned.
The front and rear positions of the pallet 2 and the hanger stay 11 are determined by the contact between the 18a.

Further, in each of the above-mentioned fittings, even if the fitting is started or the pallet 2 is slightly deformed, at least the line contact is secured, so that the contact surface pressure is low. And as described above, in each of the above fittings,
Since the contact surface pressure does not increase, abrasion damage of the contact portion can be prevented.

The pallet 2 has a vertical groove 17 at its center.
Since the central portion is formed, the rigidity of the central portion is high, and therefore the deformation or displacement of the recesses 19 formed at both end portions of the central portion is reduced. In addition, the vertical groove 17
The partition member 18 that partitions the
The vertical groove 17 has the effect of forming a knot and reinforcing it, whereby deformation or displacement of the concave portion 19 is effectively prevented.

Of course, the vertical groove 17 of the pallet 2 and the recess on the lower surface side of the convex portion 16 of the hanger stay 11 serve as a storage place for the cage stay 15 of the cage 1 adjacent to the lower side.
Therefore, each cage 1 is connected to the chain 6 of the pallet circulating means 3.
There is no problem in arranging the adjacent cages with a narrower space between them, so that the number of cages can be increased and the number of vehicles accommodated in the parking device can be increased.

In the above embodiment, the cage having the pallet is used as the vehicle accommodating means. However, a flat pallet table for mounting and holding the pallet may be attached to the chain of the pallet circulating means. In that case, the vehicle loading section and the pallet turning means are arranged at the uppermost part of the pallet circulation path, and at this uppermost part, the pallet is picked up from the pallet base and turned about the vertical axis. Also,
It is also possible to provide only the loading section at the uppermost portion of the pallet circulation path and the pallet turning means below the lowermost portion of the pallet circulation path as in the above embodiment.

[Brief description of drawings]

FIG. 1 is a sectional view of a vertical circulation parking device.

FIG. 2 is a perspective view of a cage.

FIG. 3 is an exploded view with a part omitted in the direction of arrow A in FIG.

FIG. 4 is an exploded cross-sectional view taken along line BB in FIG.

FIG. 5 is a front view showing a pallet and a swivel base.

FIG. 6 is a perspective view showing a cage with a pallet lifted from a hanger stay.

FIG. 7 is a perspective view showing a cage during turning of a pallet.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 cage 2 pallet 3 pallet circulation means 4 drive sprocket 5 driven sprocket 6 endless chain 7 pallet slewing means 8 swivel base 9 loading section 11 hanger stay (pallet pedestal) 16,20 convex section 17 vertical groove 18 partition member 19 concave section 16a, 16b , 17a, 18a, 20a Tapered contact surface

Claims (3)

[Claims] 1. A plurality of pallet stands, each having an endless chain wound around sprockets arranged above and below, and on which a pallet for mounting on a vehicle is detachably mounted at predetermined intervals in a chain traveling direction. Each pallet is configured to vertically circulate and move as the chain travels, and at the top or bottom of this pallet circulation path, lift the pallet from the pallet base and turn it around the vertical axis. In a vertical circulation type parking device equipped with a pallet turning means for placing the pallet on a pallet base by means of a protrusion, one of the pallet and the pallet base has a convex portion protruding toward the other side and having a flat taper contact surface on the side surface. Is formed, and the flat tapered contact surface where the tapered contact surface abuts on the concave side surface so that the convex portion fits on the other side. A vertical circulation type parking device characterized in that a concave portion having a ridge is formed. 2. The convex portion is formed at a center portion in the left-right direction of both front and rear ends of the pallet stand in the vehicle loading direction, and is formed on both left and right side surfaces of the convex portion and front and rear surfaces of the convex portion. Taper abutment surface is formed on a surface of the pallet base facing the center of the pallet base, and the recess is formed in a vertical groove that extends downward in the pallet center and extends in the vicinity of both front and rear ends of the vertical groove. Formed at both front and rear end portions of the pallet by a partition member that partitions the vertical groove into front and rear, and on both left and right surfaces of the vertical groove and a surface of the front and rear surfaces of the partition member facing the outer side of the pallet. The vertical circulation parking apparatus according to claim 1, wherein a tapered contact surface is formed. 3. The pallet revolving means is provided below the lowermost portion of the pallet circulation path, protrudes upward from an opening formed in the central portion of the pallet base, and lifts and pallets the pallet from the pallet base. And a flat taper abutment surface that abuts the taper abutment surface on the swivel base, while a flat taper abutment surface is formed on both side surfaces of the central portion of the vertical groove of the pallet. The vertical circulation parking apparatus according to claim 2, wherein a surface is formed.