JPH11278613A - Device for vertically storing cargo - Google Patents

Abstract

PROBLEM TO BE SOLVED: To receive the weight of cargo at ease and simplify the structure by energiz ing a stop plate toward an engaging position, turning a lower stage cargo carrying platform to an upward inclination position and connecting the arm of a cargo carrying platform to the stop plate so as to draw the stop plate engaging with the cam plate of the upper stage cargo carrying platform located in front of the upward inclination position to a release position. SOLUTION: When a lower stage cargo carrying platform 2 empties, being inclined upward, a right side cargo carrying platform 2 is inclined downward, and the cargo 4 on the right side cargo carrying platform 2 slides down to a left side lower stage cargo carrying platform 2. When the right side cargo carrying platform 2 empties, the platform 2 is inclined upward due to the force of an energizing means 11. Then, an arm 9 pulls a rod 19a and turns the stop plate 17 of the upper stage cargo carrying platform 2 to a release position to separate the first stopper section 17a of the stop plate 17 from the lower face of the first protruded section 13 of a cam plate 12. The left side cargo carrying platform 2 turns to the downward inclination position where the second stopper section 17b of the stop plate 17 abuts on the lower face of the first protruded section 13 of the cam plate 12 to make a cargo 4 slide down to the right side cargo carrying platform 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a load carrier having a plurality of left and right stages, which are arranged so as to be able to slightly tilt up and down, and are arranged so that the left and right stages are opposed to each other so as to be stepped. The present invention relates to a vertical load storage device used as an automatic warehouse or the like, in which a load is sequentially sent in a zigzag manner from an upper loading platform to a lower loading platform by its own weight, and loads are sequentially stored from a lower loading platform.

[0002]

2. Description of the Related Art A carton picker described in, for example, U.S. Pat. No. 4,621,745 is known as this kind of apparatus.

[0003]

The above-mentioned carton picker has a function of sequentially feeding loads without power and storing the loads in the vertical direction, but the end near the support from the pivot axis of the carrier is brought into contact with the stopper. The tilting of the cargo bed is stopped by contacting the stopper, and excessive force is applied to this stopper, and the linkage between the stop plate and the arm of the lower cargo bed becomes complicated, and the adjustment work is complicated. There is.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to provide a highly practical load vertical storage device that can be operated with a simple structure and without difficulty. It is an object.

[0005]

According to the present invention, the above-mentioned problem is solved as follows. (1) On the inner surface of a pair of right and left columns, a plurality of loading platforms are rotatable between an upwardly inclined position and a downwardly inclined position, and when the upwardly inclined position is set, the next one is a downwardly inclined position. A means for pivoting the upper carrier and the upper surface so as to be substantially continuous with each other so that the upper carrier is substantially continuous with each other, and urging each carrier toward an upwardly inclined position between each carrier and the support; Locking means for detecting the presence of the cargo in the upper stage and preventing downward inclination of the upper stage of the preceding stage, and dispensing means for preventing or allowing the downward inclination of the lowermost stage of the stage. In the vertical storage device, the locking means is fixed to each carrier except a lowermost stage, and an arm that rotates together with the carrier, and a first protrusion fixed to each carrier and protruding upward toward the tip end side of the carrier. A cam plate having a portion;
A first pivot which is pivotally attached to a column so as to be close to the cam plate and abuts on an upper end portion with a lower surface of a first protrusion of the cam plate to prevent a downward inclination of a carrier integrated with the cam plate.
A stopper portion, wherein the first stopper portion is at a locking position located within the rotation locus of the first protrusion of the cam plate, and the first stopper portion is a rotation locus of the first protrusion of the cam plate. A stop plate rotatable to a release position away from the main body, an urging means for urging the stop plate toward the locking position, and a lower bed carrier pivoting to an upwardly inclined position, thereby allowing a preceding stage to rotate. The arm of the lower loading platform and the linking means associated with the stop plate engaging the upper loading platform cam plate in front of the lower loading platform so as to pull the stop plate engaging with the upper loading platform cam plate to the release position. Shall be provided.

(2) In the above item (1), when the stop plate is located at the release position in the middle portion of the stop plate, by contacting the lower surface of the first protrusion of the cam plate opposed thereto. ,
A second stopper portion is provided for preventing rotation of the cargo bed integrated with the cam plate below the downward inclined position.

(3) In the above item (1) or (2), the second end protruding toward the tip end side of the carrier at the lower end of the cam plate.
By providing a projection and contacting the upper surface of the second projection at the lower end of the stop plate facing the projection, the upper end of the loading platform to which the cam plate is fixed is prevented from turning upward. 3 Provide a stopper.

[0010] (4) In any one of the above items (1) to (3), the discharging means for the lowermost loading platform is fixed to the loading platform, and the first projection which projects upward toward the front end side of the loading platform. And a cam plate having a lower end and a second protrusion projecting toward the tip end side of the carrier, and a cam plate pivotally attached to the column so as to approach the cam plate. It has a first stopper portion which can prevent a downward inclination of the carrier integrated with the cam plate by contacting the lower surface of the projection, and this first stopper portion is located within the rotation locus of the first projection of the cam plate. A stop plate that is rotatable between a lock position where the stop plate is located, and a release position where the first stopper is separated from the rotation trajectory of the first protrusion of the cam plate; And an actuator for moving the actuator.

(5) In any one of the above items (2) to (4), the height of the second stopper portion of the stop plate can be adjusted by a screw.

(6) In any one of the above (1) to (5), the linking means for linking the arm of the lower loading platform and the stop plate engaged with the cam plate of the upper loading platform in front of the arm is provided with a length. It shall be adjustable.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, a vertical storage device (A) comprises a plurality of movable stages (2) on the inside of left and right columns (1), and a left stage and a right stage. It is one that is pivoted out of step. These carriers (2) can be pivoted to three positions: an upwardly inclined position, a substantially horizontal storage position and a downwardly inclined position.

A load (4) such as a container is supplied to the top of the vertical storage device (A) from the right conveyor (3). The load (4) slides down the load carrier (2) one after another and proceeds downward. From the lowermost movable load (2a) on which the load (4) is loaded, the load (4)
(2) becomes a substantially horizontal storage position, and is filled up to the uppermost bed (2). The carrier 5 is a fixed carrier with a fixed angle. The load (4) stored in this way is delivered to the conveyor (6) from the previously stored load.

The details of such a vertical storage device according to the present invention will be described below with reference to FIGS. Figure 2
As shown in FIG. 4, a loading platform (2) having a plurality of rollers (7) on its upper surface is pivotally attached to a column (1) (see FIG. 1) by a horizontal shaft (8). For this reason, the loading platform (2)
From an upwardly inclined position as shown in the left side of FIG. 2 about 10 to 15 degrees above the horizontal, a substantially horizontal storage of about 5 degrees upward as shown in the right side of FIG. Position, or even a downward inclined position inclined 10 to 15 degrees below horizontal.

FIGS. 2 to 4 show only the mechanism on one side of the vertical storage device, but on the other side, similar mechanisms are disposed one step apart in a left-right reversed relationship. ing. As shown in FIG. 4, the height of the loading platform (2) of each stage is such that one loading platform (2) is in the upward inclined position and the other upper loading platform (2) in front thereof is in the downward inclined position. At this time, the relation is such that the upper surfaces of both loading platforms (2) are substantially continuous.

As shown on the right side of FIG. 2, an arm (9) that rotates together with the carrier (2) is fixed to the carrier (2) by a horizontal shaft (8) and a pin (10). An air spring or a compression coil spring built-in type shock is provided between a pin (10) separated from a horizontal shaft (8) on which the carrier (2) is mounted and a support (1) below the carrier (2). Biasing means such as absorbers
(11) is provided, and urges the empty cargo bed (2) to the upward inclined position (the position of the imaginary line on the right side in FIG. 2).

The upper loading platform (2) facing this loading platform (2).
A cam plate (12) is fixed to the (loading bed on the left side in FIG. 2). The cam plate (12) has a first protruding portion (13) protruding toward the front end side of the loading platform (2) at an upper portion thereof, and a second protruding portion protruding toward the front end of the loading platform (2) at a lower end portion thereof. (14).

A cam plate is mounted on a mounting plate (15) fixed to the support (1).
A rotatable stop plate (17) pivotally mounted by a pin (16) so as to be close to (12) is provided at its upper end, and a cam plate (12)
By contacting the lower surface of the first projection (13) of the
A first stopper portion (17a) that can prevent downward inclination of the loading platform (2) integrated with the 2), and a second stopper portion (17) that is provided at the middle portion and that can contact the lower surface of the first projection (13). 17b) and a third stopper portion (1) provided at a lower end portion thereof and in contact with the upper surface of the second protrusion (14) to prevent the loading platform (2) from turning upward from the upward inclined position.
7c). The stop plate (17) is a biasing means stretched between its upper end and the mounting plate (15), that is, a coil spring.
According to (18), the first stopper portion (17a) is moved to the first position of the cam plate (12).
It is urged to a locking position in contact with the lower surface of the projection (13), but is turned around the pin (16) against the force of the coil spring (18), and the first stopper portion is formed. (17a) can be rotated to the release position where the first protrusion (13) comes off.

A rod (19a) is pivotally attached to the upper end of the stop plate (17), and the other end of the rod (19a) is screwed into the connecting cylinder (19b) so as to be adjustable in length. A long hole (20) is formed in the other end of the connecting cylinder (19b), and the aforementioned arm (9)
A pin (21) protruding from the side surface of the distal end portion of the arm of the right carrier (2) is loosely fitted. Rod (19a) and connecting cylinder (19b)
Form linking means.

With such a configuration, as shown in FIG. 2, when the load (4) is loaded on the lower (right) loading platform (2),
The loading platform (2) is in the holding position indicated by the solid line, and its arm (9) is rotated by the urging force of the coil spring (18) to the stop plate (17) of the front upper loading platform (2). The carrier (2) is moved to a position where it is allowed to move.
The third stopper (17c) of (7) is the second protrusion (14) of the cam plate (12).
Is tilted upward by the urging means (11) until it comes into contact with the upper surface of the.

In this state, when the load (4) descends on the left-hand loading platform (2) in FIG.
(2) rotates together with the cam plate (12), and the first stopper portion (17a) of the stop plate (17) comes into contact with the lower surface of the first protrusion (13) of the cam plate (12). Is stopped. This position is the storage position, and the load (4) is stored on the loading platform (2).

During this time, when the lower loading platform (2), part of which is shown in the lower left part of FIG.
The right carrier (2) is in the downward inclined position, and the right carrier is
The load (4) of (2) slides down to the lower left loading platform (2).

In this way, when the right loading platform (2) becomes empty, as shown by the imaginary line in FIG.
(2) occupies the upward inclined position by the force of the urging means (11), and accordingly, the arm (9) pulls the rod (19a), and the stop plate (17) of the front upper carrier (2) is moved. Rotate to the release position,
The first stopper (17a) of the stop plate (17) is connected to the first stopper (17) of the cam plate (12).
Pull off from the lower surface of the protrusion (13).

Then, as shown in FIG. 4, the left loading platform (2)
As shown in FIG. 4, the second stopper portion (17b) of the stop plate (17) pivots to a downward inclined position where the second stopper portion (17b) contacts the lower surface of the first protrusion (13) of the cam plate (12). (4) slides down to the right carrier (2).

The reference numeral (22) indicates the loading platform by the pin (10).
(2) is a locking lever rotatably attached to the upper end of the loading plate (3), which is always inclined by the biasing force of the coil spring (23), and the lower end is attached to the mounting plate (15). ) Is engaged with the stopper (24) attached thereto, and holds the loading platform (2) in the upwardly inclined position, but the load (4) is placed on the horizontal bar (22a) provided at the upper end of the locking lever (22). ), The lower end is disengaged from the stopper (24) when the coil spring (23) is turned against the urging force of the coil spring (23) to allow the bed (2) to tilt downward. Therefore, by the action of the locking lever (22), each loading platform (2) is held in the upwardly inclined position until the loading (4) is completely received from the upper loading platform (2), and the loading (4) is received. It does not tilt downward on the way.

FIGS. 5 to 7 show the rear surface (the surface opposite to FIGS. 2 to 4) of the lowermost movable carrier (2a). This carrier (2a)
Has no means for linking to the next lower loading platform, but is provided with an actuator (25) for rotating the stop plate (17). The loading platform (2a) waits for the entry of the load (4) in the upward inclined position shown in FIG. 5, and when the load (4) comes in, it becomes the storage position shown in FIG.
By actuating the actuator (25) and rotating the stop plate (17) to the release position, the first stopper portion (17a) is pulled off from the lower surface of the first protrusion (13) of the cam plate, and as shown in FIG. As shown,
With the loading platform (2a) in the downward inclined position, the cargo (4) can be paid out.

[0026]

According to the U.S. Pat. No. 6,085,086, the rotation of the carrier is stopped by a stopper at the end of the carrier closer to the support from the pivot, and a large force is applied to the stopper and the stopper is stopped. Although the link between the plate and the lower arm is complicated, according to the first aspect of the present invention, since the stop plate is provided on the tip end side of the bed, the load can be easily received and the structure can be reduced. Can be simplified.

According to the structure of the second aspect of the present invention, the stopper can be integrated into one stop plate, and its mounting and adjustment of the mounting position can be performed easily, which is advantageous.

According to the structure of the third aspect of the present invention, even up to three stoppers can be combined into one stop plate, which is advantageous.

According to the structure of the fourth aspect of the present invention, the dispensing means for the lowermost carrier uses a cam plate and a stop plate common to other movable carriers, and an actuator is simply added thereto. This is convenient because it can be shared with other loading platform mechanisms.

According to the structure of the fifth aspect of the present invention, the angle of the downward inclined position can be finely adjusted to match the upward inclined angle of the lower bed.

According to the structure as described in the sixth aspect of the present invention, it is possible to finely adjust the relationship between the release of the locking of the stop plate with the cam plate of the upper carrier due to the upward inclination of the lower carrier.

[Brief description of the drawings]

FIG. 1 is a schematic front view of an embodiment of the present invention.

FIG. 2 is an enlarged front view showing the details of a pair of left and right luggage carriers having the same step.

FIG. 3 is a front view showing another operation state of the carrier shown in FIG. 2;

FIG. 4 is a front view showing still another operation state of the carrier shown in FIG. 2;

FIG. 5 is an enlarged front view of the lowermost movable carrier.

FIG. 6 is an enlarged side view showing another operation state of the carrier shown in FIG. 5;

FIG. 7 is an enlarged side view showing still another operation state of the carrier shown in FIG. 5;

[Explanation of symbols]

 (A) Vertical storage device (1) Column (2) (2a) Carrier (3) Conveyor (4) Load (5) Fixed carrier (6) Conveyor (7) Roller (8) Horizontal shaft (9) Arm (10) Pin (11) Biasing means (12) Cam plate (13) First protrusion (14) Second protrusion (15) Mounting plate (16) Pin (17) Stop plate (17a) First stopper (17b) Second stopper part (17c) Third stopper part (18) Coil spring (biasing means) (19a) Rod (linking means) (19b) Connecting cylinder (linking means) (20) Slot (21) Pin (22) Lock lever (22a) Bar (23) Coil spring (24) Stopper (25) Actuator

Claims (6)

[Claims] 1. A plurality of loading platforms are provided on the inner surfaces of a pair of right and left columns to be rotatable between an upwardly inclined position and a downwardly inclined position, and when the upwardly inclined position is set to a downwardly inclined position. A means for urging each carrier toward an upwardly inclined position, between each carrier and a column, and pivoting so as to face the next upper carrier and the upper surface substantially successively so as to be substantially continuous with each other; Locking means for detecting the presence of the load on each carrier and preventing downward inclination of the upper carrier in front thereof; and dispensing means for preventing or allowing downward inclination of the lowermost carrier. In the vertical load storage device, the locking means is fixed to each of the loading platforms, and an arm that rotates together with the loading platform, and a second arm that is fixed to each of the loading platforms except for the lowermost stage and projects upward toward the tip end of the loading platform. A cam plate having one projection; So as to be closer to the plate is pivotally secured to the post, the upper end portion, by contacting the lower surface of the first projection of the cam plate, the may block downward inclination of loading platform of the cam plate integrally 1
A stopper portion, wherein the first stopper portion is at a locking position located within the rotation locus of the first protrusion of the cam plate, and the first stopper portion is a rotation locus of the first protrusion of the cam plate. A stop plate rotatable to a release position away from the device, an urging means for urging the stop plate toward the locking position, The arm of the lower loading platform and the linking means associated with the stop plate engaging the upper loading platform cam plate in front of the lower loading platform so as to pull the stop plate engaging with the upper loading platform cam plate to the release position. A vertical storage device for cargo, comprising: 2. When the stop plate is located at the release position in the middle position of the stop plate, the lower surface of the first protrusion of the cam plate opposes the lower surface of the stop plate, thereby making the loading plate integral with the cam plate. 2. The vertical storage device according to claim 1, further comprising a second stopper portion for preventing rotation of the load downward from the downward inclined position. 3. A lower end of the cam plate is provided with a second protrusion protruding toward the front end side of the carrier, and a lower end of a stop plate opposed thereto is brought into contact with an upper surface of the second protrusion. 3. The vertical storage device according to claim 1, wherein a third stopper portion is provided for preventing the loading plate to which the cam plate is fixed from rotating upward from the upwardly inclined position. 4. A discharging means for the lowermost loading platform, wherein the first loading portion is fixed to the loading platform and projects upwardly toward the tip end of the loading platform, and a lower end projects from the lower end toward the tipping side of the loading platform. A cam plate having two protruding portions; a loading platform which is pivotally attached to the column so as to be close to the cam plate, and which abuts on an upper end portion with a lower surface of the first protruding portion of the cam plate; A first stopper portion capable of preventing the downward inclination of the cam plate, wherein the first stopper portion is in a locking position located within the rotation locus of the first protrusion of the cam plate, and the first stopper portion is the cam plate. 4. A stop plate rotatable to a release position away from the rotation locus of the first projection, and an actuator for moving the stop plate to a lock position and a release position. The load vertical storage device according to any one of the above. 5. The vertical storage device according to claim 2, wherein the height of the second stopper portion of the stop plate is adjustable by a screw. 6. The length of the linking means for linking the arm of the lower loading platform and the stop plate engaged with the cam plate of the upper loading platform in front of the lower loading platform is adjustable. A vertical storage device for the described load.