KR910008114B1 - Device for securing palettes - Google Patents

Abstract

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Description

Pallet fixing device

1 to 7 is a view showing an embodiment of a pallet fixing device according to the present invention,

1 and 2 are front and side views of the arm part.

3 and 4 are enlarged front and side views of the main part of the pallet fixing device.

5 and 6 are a front view and a side view of the three-dimensional parking device.

7A-F are enlarged front views of main parts for explaining the operation example of the pallet fixing device.

8 to 16 are views showing a three-dimensional parking device of the prior application,

8 and 9 are front and side views of the three-dimensional parking device.

10 is a plan view of a pallet.

11 and 12 are enlarged front view and plan view of the platform of the platform.

13A and 13B are schematic views for explaining the operation of the telescopic arm.

14 is an enlarged side view of the engaging device.

FIG. 15 is a cross sectional view of FIG. 14. FIG.

Figure 16 is an enlarged front view of the main part for explaining the locking mechanism of the pallet.

17 is a schematic view of a conventional three-dimensional parking device.

* Explanation of symbols for main parts of the drawings

11, 11 ': rack 12: pallet

15: lifting device 17: lifting platform

20: feeder 21: telescopic arm

41: bracket 44: arm

46: weight portion 47: engagement member

48: pallet fixing device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for reliably accommodating a pallet in an accommodation rack in a three-dimensional parking or baggage storage device that parks a plurality of cars in multiple stages or stores a plurality of goods within a limited site.

In recent years, with the increase of automobiles, it is necessary to secure parking lots in areas with high traffic volume, such as urban areas, and therefore, a three-dimensional parking device capable of accommodating a large number of automobiles in a limited installation space has been spreading.

An example of the conventional three-dimensional parking device is shown in FIG. 17 and will be described below.

In the figure, reference numeral 1 denotes a drive sprocket, 2 a driven sprocket disposed in a vertically downward direction of the drive sprocket 1, and 3 a space between the drive sprocket 1 and the driven sprocket 2; The chains (4) (4) ... suspended in the chains are disposed in the chains 3 at predetermined pitches to display cages for accommodating automobiles therein.

The drive sprocket 1 is driven by appropriately switching the direction of rotation in both forward and reverse directions by a drive device (not shown), and drives the chain 3 suspended in the drive sprocket 1 according to the driven sprocket 2. It cycles between and.

The cages (4) (4) ... are configured to always maintain a horizontal state regardless of the position of the chain (3) by means of appropriate means so as to be swingable relative to the chain (3). Incidentally, the entrance and exit of the automobile is formed at a position substantially the same as the cage 4 in the lowermost position (the position of P in Fig. 17).

In the above-described three-dimensional parking device, in order to move in and out of a vehicle, the drive sprocket 1 is rotated in an appropriate direction to move the cage 4 or the empty cage 4 which accommodates the desired vehicle to the lowest position, Cars enter and exit from the doorway formed at this position.

As described above, the conventional three-dimensional parking device has a structure in which cages (4) (4) ... which accommodate an automobile at predetermined pitches are attached to an ununited (3) which circulates in the vertical direction. I had the same problem.

In the above-described three-dimensional parking device, in order to move the predetermined cage 4 to the lowermost entrance and exit at the time of entering and exiting a vehicle, cages 4, 4,... All of them must be moved, and the control for moving the predetermined cage 4 to the entrance is complicated, and a large output is also required as a drive source of the chain 3. In addition, the weight of the vehicle accommodated in all the cages 4, 4 and 4 and 4 is driven by the drive sprocket 1 of the chain 3 and the chain 3. Since the structure is supported, a strong support structure is required, and the apparatus becomes large and at the same time expensive.

In addition, it is necessary to keep the cage 4 horizontally at all times regardless of the circulation direction of the chain 3, and the cage 4 (so as not to interfere with each other). 4) Since it is necessary to set the excretion pitch and the diameter of the drive sprocket 1, it is limited by the improvement of the utilization rate of space.

In addition, it is very difficult to change the vehicle capacity of the apparatus in response to changes in the location conditions due to the structural constraints.

Therefore, the present applicant has proposed a three-dimensional parking device for solving the above problem in the earlier application (Japanese Patent Application No. 61-222696).

The outline of the above-described three-dimensional parking device will be described below with reference to FIGS. 8 to 15. In the same figure, (11) (11 ') is a multistage accommodating rack arrange | positioned opposingly, and can accommodate the pallet 12 in which the automobile A is mounted in each stage. Rails 13 and 13 along the width direction (left and right directions in FIG. 8) are disposed on the front and back sides of the pallet 12 of the racks 11 and 11 '. . The stopper members 14 and 14 are arranged and fixed at predetermined positions inside the respective rails 13 and 13.

Casters 12a and 12a for moving the pallet 12 in the width direction are disposed at both positions along the rails 13 and 13 of the pallet 12, that is, at both ends in the width direction. Moreover, the hook members 12b and 12b are arrange | positioned in each of two places of the width direction both in the lower surface of the pallet 12. As shown in FIG.

15 is an elevating device disposed in one accommodating rack 11 of the accommodating racks 11 and 11 ', and has an elevating platform 17 which ascends and descends via a drive mechanism 16. The lifting platform 17 is capable of ascending and descending the side of the storage rack 11 in a state where it is always kept horizontal through two types of guide rollers 18, 19, 18 and 19.

20 is a conveying apparatus which is arrange | positioned at the said platform 17, and can change the direction of movement between the accommodation rack 11 and the platform 17 in the said pallet 12. As shown in FIG. This conveying apparatus 20 is comprised by the multi-stage telescopic arm 21 and the engaging device 30 of the pallet 12, The telescopic arm 21 is the front and rear of the platform 17. It is attached to the two places in the width direction of the platform 17. The telescopic arm 21 is composed of first to third arms 22, 23 and 24, and the first arm 22 is fixed to the platform 17. As shown in FIG. Chains 25 and 25 are installed in the first arm 22 in the longitudinal direction, and chain racks 26 and 26 are fixed to both ends of the upper surface. The second arm 23 is arranged to be movable on the first arm 22 in a longitudinal direction. Chain 27 is installed in the longitudinal direction of this 2nd arm 23, and four chain racks 28, 28 ... are installed in the both ends of the lower surface, and this chain rack 28, 28 is provided. ... is disposed on the first arm 22 and engaged with the upper side of the chains 25 and 25. Therefore, as shown in FIG. 13A, the second arm 23 is predetermined by engaging the chain 25 and the chain racks 28 and 28 circulating in the first arm 22. Move in the direction of The third arm 24 is arranged to be movable on the second arm 23 in a longitudinal direction. Similar chain racks 29 and 29 are laid at both ends of the lower surface of the third arm 24 in the longitudinal direction, and the chain racks 29 and 29 are second arms 23. It meshes with the upward direction of the chain 27 arrange | positioned at. Accordingly, the third arm 24 circulates by engaging with the chain rack 26 of the first arm 22 as the second arm 23 moves, as shown in FIG. 13 (b). By the engagement of the chain 27 on the second arm 23 side and the chain rack 29 of the third arm 24, the same speed as the movement speed of the second arm 23 relative to the first arm 22 is obtained. It moves with respect to the 2nd arm 23.

Moreover, the engaging device 30 and 30 with the said pallet 12 are arrange | positioned in two places near the center substantially in the longitudinal direction in the outer side surface of the said 3rd arm 24. As shown in FIG.

As shown in FIGS. 14 and 15, the engaging device 30 is provided perpendicular to the base plate 31 and the base plate 31, and is parallel to the frame plates 32 and 32. And a converter plate 33 of a linear reciprocating motion-circle motion attached to the frame plates 32 and 32, and a stopper plate 34 disposed on the converter device 33.

The converter mechanism 33 uses a nut-shaped member 35 and a lead screw 36 screwed to the nut-shaped member 35, and the third arm 24 of the telescopic arm 21 is used. The hydraulic member 37 fixed to the distal end of the lead screw 36 abuts on the stopper member 14 provided in the accommodation racks 11 and 11 'at the time when the movement to the predetermined position occurs, and the third The predetermined stroke is pressed in accordance with the movement to the maximum position of the arm 24. In response to this pressing force, the lead screw 36 moves in the axial direction without rotating, rotates the nut-shaped member 35 by a predetermined angle in a constant direction, and this rotation operation is transmitted to the stop plate 34, The locking plate 34 is rotated by a predetermined angle. Since the stroke amount of the lead screw 36 is set to an amount capable of rotating the nut-shaped member 35 by 90 °, the locking plate 34 is 90 ° for every retracting operation of the predetermined stroke of the lead screw 36. It rotates a little and repeats engagement and disengagement with the hook-like member 12 of the said pallet 12.

The following describes how to accommodate and take out automobiles in the three-dimensional parking apparatus. In addition, in the initial state, it is assumed that the vehicle A is not accommodated in the accommodation racks 11 and 11 'at all, and the lifting device 15 is in the state where the lifting platform 17 is lowered to the lowest position. It is said to be stationary. Also, in this initial state, the rails 17a and 17a of the platform 17 are appropriately adjusted in advance by appropriately adjusting the lifting device 15 and the conveying device 20, so that the appropriate stages of the receiving racks 11 and 11 '( I) A pallet 12 disposed at a position, for example, the top end I of the accommodation rack 11, is assumed to be placed.

By the way, in accommodating the automobile A, the vehicle A is first moved on the pallet 12 on the platform 17 and stopped.

Next, the elevating device 15 is operated to raise the platform 17 until the pallet 12 which stops the vehicle A reaches the height of the stage I originally accommodated. In this state, the rails 13 and 13 of the stage I and the rails 17a and 17a of the platform 17 are located in a straight state on the same horizontal plane.

Next, the transfer devices 20 and 20 are operated. Then, as described above, the second arm 23 is in a predetermined direction, that is, the figure by engaging the chains 25 and 25 that circulate with the chain racks 28 and 28 of the second arm 23. Protrudes from the first arm 22 toward the receiving rack 11 on the right side. At the same time, the chain 27 disposed on the second arm 23 in accordance with the movement of the second arm 23 circulates by engaging with the chain rack 26 of the first arm 22, and the chain 27 ) Is transferred to the third arm 24 by the chain rack 29 of the third arm 24 which meshes with the chain 27, so that the third arm 24 is connected to the second arm 23. In the same direction as), it protrudes with respect to the second arm 23 at the same speed.

Then, by the engaging device 30 disposed on the right side in the longitudinal direction of the third arm 24, the rails 17 are separated from the rails 17a and 17a of the platform 17 at the same speed as the third arm 24. When the third arm 23 protrudes to a predetermined position and moves toward the rails 13 and 13 of (I), the hydraulic member 37 of the engaging device 30 moves toward the receiving rack 11 side. The lead screw 36 is retracted because it is relatively pressed against the stopper member 14. Then, by engaging the lead screw 36 and the nut-shaped member 35, the locking plate 34 is rotated in a predetermined direction by 90 °, so that the hook member 12b and the locking plate 34 of the pallet 12 are rotated. ) Is released and the pallet 12 is placed on the rails 13 and 13 at the top end I of the storage rack 11 in a state where the vehicle A is mounted. . In this state, the pallet 12 is securely placed on the rails 13 and 13 and is locked so as not to move on the rails 13 and 13.

Next, the transfer device 20 is operated in the reverse direction, and the second and third arms 23 and 24 are returned to the first arm 22 in the opposite manner to the above description. And one of the empty pallets 12 on the rails 13 and 13 of the other stages II (III) and (I ') (II') (III ') of the receiving racks 11 and 11'. The elevating device 15 and the conveying device 20 are operated to accommodate on the platform 17. For example, when receiving the pallet 12 of the top end I 'of the accommodation rack 11' of the left side in the figure, the conveying apparatus 20 is stopped in the state which the said platform 17 stopped at the highest value mentioned above. ), The second arm 23 and the third arm 24 protrude toward the left side in the drawing. When the third arm 24 moves to the predetermined position, the hydraulic member 37 of the engaging device 30 disposed on the left side in the longitudinal direction of the third arm 24 stops the stopper member 14 of the receiving rack 11 '. ), The pressing plate 34 rotates in a predetermined direction by 90 ° and engages with the hook member 12b of the pallet 12.

In this state, when the transfer device 20 is operated in the reverse direction and the second and third arms 23 and 24 are returned on the first arm 22, the retracting operation of the third arm 24 is prevented. Thus, the pallet 12 in the engaged state is moved from the rails 13 and 13 at the top end I 'of the receiving rack 11' onto the rails 17a and 17a of the platform 17. do. In this state, the elevator 15 is operated to lower the platform 17 to the lowest position, and then the elevator 15 is stopped.

However, when the pallet 12 is accommodated in the accommodation rack 11, the pallet 12 is reliably stopped so as not to move toward the doorway, as shown in FIG. 16, the outer side of the rail 13. At the end, the rail surface is lowered to form an accommodating portion 13a having a step formed therein, and the caster 12a is accommodated in the accommodating portion 13a as the pallet 12 moves into the accommodating rack 11. The pallet 12 is prevented from moving toward the doorway. By the way, when the pallet 12 accommodated in the high position by the structure of the accommodation rack 11 falls from the accommodation rack, it will cause a big accident and raises a risk, and therefore, the pallet 12 is accommodated in the accommodation rack. It was necessary to stop again reliably within (11).

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above problems, and the technical means for solving the problems are provided with a lifting device having a lifting table which descends on one side of a multistage receiving rack arranged oppositely, and the transfer device installed on the lifting table. In the case where a pallet on which a vehicle or a load is placed can be shifted between a receiving rack and a platform via a telescopic arm of the bracket, an intermediate portion of the bracket attached to the receiving rack and the bracket is generally confined. The rotating arm portion, in which the other end is protruded upward by the weight part fixed to the upper part, and the other end is pressed down in accordance with the extension of the telescopic arm, and a part of the pallet It is provided with the engaging member which adhere | attaches corresponding to the said arm part, and abuts on the end surface of the other end part of the said arm part.

According to the above technical means, the arm part is balanced by the weight of the weight part of one end so that the other end protrudes upward, and when the pallet is accommodated in the accommodation rack, the arm of the stretchable arm engaged with the pallet According to the elongation, the forward end portion presses down the other end of the arm portion. Then, after the pallet is moved to a predetermined position of the receiving rack, the other end of the arm part protrudes upward to maintain an equilibrium state as the telescopic arm degenerates, and in this state, the cross section of the other end of the arm part is maintained. Immediately with the engagement member of this pallet, the movement to the entrance / exit side of a pallet is prevented. On the other hand, when the pallet is withdrawn from the receiving rack, the other end of the arm portion is pushed down in accordance with the extension of the telescopic arm to release the contact state with the engagement member of the pallet, thereby moving the pallet toward the entrance. .

An embodiment of a pallet fixing device according to the present invention will be described below with reference to the three-dimensional parking device shown in FIGS. However, the same reference numerals are given to the same or equivalent parts as those of FIGS. 8 to 15, and the description thereof is omitted. In FIG.1 and FIG.2, 41 is a bracket, and the frame boards 43 and 43 are provided in the base board 42 in parallel with each other perpendicularly. 44 is an arm part whose intermediate part pivoted by the pin 45 to the frame boards 43 and 43 of the bracket 41 is a rotating part, and the weight part 46 is fixed to the one end part. The entire arm portion 44 is inclined to one side by the weight of the weight portion 46, and one side surface 46a of the weight portion 46 and one side surface 43a of the frame plate 43 of the bracket 41 are formed. This abutment maintains an equilibrium state, and in this state, the other end protrudes upward. 3 and 4 are partially enlarged front and side views showing the attachment state of the arm portion 44. In the same drawing, reference numeral 11 denotes a part of the receiving rack, and 12 denotes the caster 12a. A portion of the excavated pallet 24 denotes a portion of the third arm portion of the telescopic arm 21, 13 denotes a portion of the rail which is the receiving rack 11, and 39 denotes a stopper such as a rubber product. The arm portion 44 is attached to a part of the accommodation rack 11 via the bracket 41 in a state where the other end is directed outward of the accommodation rack 11. The attachment position will be described in more detail, as shown in Figs. 5 and 6, in the position in contact with the inner side of the third arm 24 near the outer side of the receiving racks 11 and 11. In addition, 47 is an engaging member attached to the lower surface of the outer side of the pallet 12 corresponding to the arm part 44, and abuts on the end surface of the other end of the arm part 44. As shown in FIG.

An operation example of the pallet fixing device including the arm portion 44 and the engaging member 47 will be described below with reference to FIGS. 7A to F. FIG. 7A shows a state in which the pallet 12 is accommodated in the accommodation rack 11, in which the end surface of the other end of the arm portion 44 abuts the engagement member 47, whereby the pallet 12 ) Is certainly at rest. When moving the pallet 12 in the stationary state to the platform 17, the third arm 24 of the telescopic arm 21 is extended to extend the third arm as shown in Fig. 7B. As the forward end portion presses the other end portion of the arm portion 44 downward along the extension of the 24, the contact state with the engagement member 47 is released. In this state, the engagement device 30 is operated to rotate the engagement plate 34 by 90 degrees to engage the hook member 12b of the pallet 12. Then, as shown in FIG. 7C, the pallet 12 is moved from the entrance side of the accommodation rack 11 onto the platform 17 by degenerating the third arm 24.

Subsequently, when moving the pallet 12 mounted on the platform 17 into the accommodation rack 11, the pallet in engagement with the 3rd arm 24 as shown in FIG.7 (d). The twelve 12 is moved into the accommodation rack 11 by extending the third arm 24. At the maximum extension of the third arm 24, the other end of the arm portion 44 is pressed down as shown in Fig. 7E. Then, the engagement device 30 is operated in accordance with the movement of the pallet 12 to the predetermined position, and the locking plate 34 is rotated by 90 degrees to move away from the pallet 12. Thereafter, as shown in Fig. 7 (f), the arm portion 44 returns to the equilibrium state as the third arm 24 degenerates, and the other end protrudes upward, so that the cross section of the other end is In contact with the engagement member 47 of the pallet 12, the movement of the pallet 12 is prevented and it becomes the state which stopped reliably.

In addition, the shape, material, coefficient, etc. of the arm part and the engagement member in the said Example are not limited, A design change is possible within the scope of the present invention.

According to the pallet fixing device according to the present invention, in the state where the end surface of the other end of the arm portion is brought into contact with the engaging member of the pallet, the pallet is reliably stopped in the receiving rack, and the arm is extended by the extension of the arm. The pallet can be moved by releasing the contact state between the arm and the engaging member. Therefore, the pallet can be reliably stopped in the accommodation rack except at the time of the movement conversion to the hoistway, and the fall accident of the pallet from the inside of the accommodation rack is prevented in advance, and the stability is very high.

Claims (1)

An elevating device 15 having a lifting table 17 which moves up and down on one side of the multi-stage receiving racks 11 and 11 'arranged to face each other, and the telescopic arm of the transfer device 20 disposed on the lifting table ( In the three-dimensional baggage storage device which can convert the pallet 12 in which a load is mounted via 21 between the accommodation racks 11 and 11 'and the platform 17, the said accommodation rack 11 ( 11 ') and an intermediate portion of the bracket 41 attached to a portion of the bracket 41, and the weight portion 46 fixed to one end is maintained in an equilibrium state so that the other end protrudes upward. In addition, the other end portion is pushed down in accordance with the extension of the stretchable arm 21, and fixed to a portion of the pallet 12 corresponding to the arm portion 44 And an engaging member (47) contacting the end surface of the other end of the arm portion (44).

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