JP2005201010A - Elevator type parking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator type parking device capable of adjusting levelness of an elevator with a simple constitution. <P>SOLUTION: This elevator type parking device has a parking shelf 4 for storing a vehicle, an elevator 3 lifted by wires 8 connected to the four corners, a variable guide pulley 15 for respectively supporting a part between its elevator and a hoisting device on three wires among the four wires, a horizontally adjusting mechanism 19 for displaceably supporting the variable guide pulley 15 and adjusting the levelness by vertically moving the corner part of the elevator 3 via the wires by pushing and pulling, position sensors 20 and 21 respectively arranged in wire connecting parts of the four corners of the elevator 3, and a detecting plate 37 arranged on the parking shelf 4 side and detectable by the position sensors 20 and 21. The respective position sensors are composed of a pair of vertically separated upper sensor element and lower sensor element, and are constituted so that the respective sensor elements can detect the detecting plate 37. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an elevator parking apparatus. More specifically, the present invention relates to an elevator-type parking apparatus including a parking shelf that is installed in a plurality of stages above and below to accommodate a vehicle, and an elevator that moves the vehicle up and down to the parking shelf.

  2. Description of the Related Art Conventionally, there is known an elevator type parking device that is lifted and lowered by winding and unwinding a wire rope (hereinafter simply referred to as a wire) attached to the four corners of the elevator. (See Patent Documents 1 and 2). In these elevators, an uneven load is generated depending on the size and type of the vehicle on which the vehicle is mounted, a stop position on the elevator, and the like, and this may cause different elongation in each wire. As a result, if the elevator is tilted, delivery of vehicles and pallets between the elevator and the parking rack may be difficult or impossible. Note that the elongation is within the elastic limit of the wire.

  In order to solve such a problem, a parking device having a special locking device in an elevator and each parking shelf has been proposed (see Patent Document 3). However, in this parking device, it is necessary to install a part of the locking device for each parking shelf, resulting in an increase in equipment cost. Further, when the elevator is tilted and locked by this locking device, the tension is removed from some wires, but a large tension may be applied to other wires.

  Further, there has been proposed an elevator equipped with hydraulic cylinder type tension adjusting means for applying tension to each of four wires at four corners of the elevator (see paragraphs [0012], [0013] and [0013] of Patent Document 4). (See FIG. 2). The tension adjusting means engages an engagement pulley with a wire extending between two guide pulleys, and pulls the engagement pulley with a hydraulic cylinder to apply tension to the wire. Adjust the lift of the elevator corners by changing the degree of tension. However, fine adjustment is difficult with a hydraulic cylinder, and it is necessary to increase the stroke of the hydraulic cylinder with respect to the wire pulling amount (elevator lifting amount). Or wire may be adversely affected.

  Further, there has been proposed one in which four wires at the four corners of the elevator are respectively attached to the four corners of the elevator via hydraulic cylinders (see paragraph [0011], paragraph [0017] and paragraph [0017] in FIG. 2). By adjusting the length of each wire including the hydraulic cylinder by the expansion and contraction of the rod of the hydraulic cylinder, the level of the elevator is adjusted. However, because of the four hydraulic cylinders, the weight to be hung by the wires increases, and further, the vehicle mounting space on the upper surface of the elevator is eroded (wasted).

In addition, the four wires at the four corners of the elevator are respectively wound around the sheaves at the top of the parking device, and then lifted up and pulled out to raise and lower the elevators. An apparatus including a horizontal level adjusting device for lifting and lowering by an electric cylinder or the like has been proposed (see paragraphs [0049] and [0050] and FIG. 3 of Patent Document 6). However, fine adjustment becomes difficult.
JP-A-2-84572 JP 2003-106000 A JP 2003-97077 A Utility Model Registration No. 2541796 Japanese Utility Model Publication No. 5-77465 JP 2001-262853 A

  The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide an elevator parking apparatus that can eliminate the inclination of the elevator from the horizontal state with a simple configuration.

The elevator parking apparatus of the present invention is
A parking shelf for accommodating vehicles, formed in multiple stages;
Elevators for transporting vehicles, with suspension wires connected to the four corners,
A hoisting device for raising and lowering the elevator by hoisting and feeding the four wires;
About three wires out of the above four, variable guide pulleys that respectively support portions between the elevator and the hoisting device;
A level adjustment mechanism is provided for adjusting the level of the elevator by supporting the variable guide pulley so as to be displaceable and pushing and pulling the variable guide pulley.

  In such a parking apparatus, the parking shelves are installed on the left and right sides of the elevator hoistway, and one of a position sensor and a portion to be detected that can be detected by the position sensor at each of the wire connection portions in the four corners of the elevator. And the other of the position sensor and the detected part can be installed in each part of the parking shelf facing the one of the position sensor and the detected part of the elevator.

  Alternatively, the parking shelf is installed only on one of the left and right sides of the elevator hoistway, and the elevator guide member is installed on the other side. One of the detected parts that can be detected by the position sensor is installed, and the position sensor is disposed on each of the parking racks and the guide member at a position facing one of the position sensor of the elevator and the detected part. The other of the detected parts can also be installed.

  Each position sensor is preferably composed of a pair of an upper sensor element and a lower sensor element that are vertically separated, and each sensor element is configured to be able to detect the detected portion. This is because it can be seen whether the elevator is displaced up or down from the position (normal position) to be stopped.

  Preferably, the horizontal adjustment mechanism is installed in the uppermost machine room of the parking apparatus, the variable guide pulley is suspended by the horizontal adjustment mechanism, and the horizontal adjustment mechanism is configured to drive the variable guide pulley up and down.

  The horizontal adjustment mechanism includes an outer screw member and an inner screw member that are screwed together, and one of the screw members is configured to be non-rotatable and linearly movable in the axial direction, and the other is rotatable and linearly linearly movable in the axial direction. A parking device in which the variable guide pulley is suspended by a screw member that is configured to be impossible and can go straight, and a rotation drive device is connected to the rotatable screw member is preferable. This is because, by adopting the screw member, the elevator can be lifted and lowered even with a small dimension, so that the vertical position of the elevator can be finely adjusted.

  The horizontal adjustment mechanism is provided with a worm gear, an inner screw is formed at the center of the worm wheel of the worm gear, and an outer screw member that is non-rotatable and linearly can be screwed onto the inner screw, and the above-described variable is connected to the outer screw member. It is preferable to suspend the guide pulley and connect the rotary drive device to the worm of the worm gear.

  The leveling mechanism includes a transmission line, a driving device for winding and feeding the line, and an engagement member connected to the variable guide pulley, and the engagement member is hung on the line. A parking apparatus configured to rotate and to raise and lower the variable guide pulley together with the engaging member by winding and unwinding the rope with the driving device is preferable.

Further, a control device for controlling the operation of the hoisting device and the horizontal adjustment mechanism is further provided, and the control device is configured to receive a detection signal from each position sensor,
If there are three wires supported by the variable guide pulley among the four wires, the detection signal from the non-adjustment position sensor near the connection part of the wire not supported by the variable guide pulley has been received. Subject to
In addition, when all four wires are supported by the variable guide pulley, on the condition that the detection signal from the adjustment side position sensor near the connection part of one of the wires is received,
When the detection signal is not received from any other adjustment side sensor, the operation of the horizontal adjustment mechanism is commanded to displace the variable guide pulley of the wire corresponding to the unreceived adjustment side sensor. It is preferable to configure to stop the operation of the horizontal adjustment mechanism when the detection signal from the adjustment side sensor is received by the displacement.

Furthermore, it further comprises a control device for controlling the operation of the hoisting device and the horizontal adjustment mechanism, and this control device is configured to receive detection signals from the respective position sensors,
If there are three wires supported by the variable guide pulley among the four wires, the detection signal from the non-adjustment position sensor near the connection part of the wire not supported by the variable guide pulley has been received. Subject to
In addition, when all four wires are supported by the variable guide pulley, on the condition that the detection signal from the adjustment side position sensor near the connection part of one of the wires is received,
Based on the detection signal from one of the upper sensor element and the lower sensor element of the adjustment side sensor, the position deviation of the elevator on either the upper or lower side of this adjustment side is determined, and the variable guide pulley of the wire corresponding to the adjustment side sensor is It is preferable that the operation of the horizontal adjustment mechanism is commanded so as to be displaced.

  According to the present invention, for example, when one of the four corners of the elevator reaches a position (normal position) to be stopped, the other corners of the elevator are moved to the normal position by operating the horizontal adjustment mechanism. As a result, the levelness of the elevator is adjusted. Moreover, it enables fine adjustment with a simple configuration.

  An embodiment of an elevator parking device of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a longitudinal sectional view showing an embodiment of an elevator parking apparatus (hereinafter simply referred to as a parking apparatus) according to the present invention. 2 is a cross-sectional view taken along the line II-II in FIG. FIG. 3 is a perspective view showing the elevator in FIG.

  The illustrated parking apparatus 1 is for lifting and lowering a pallet 2 on which a vehicle M is mounted by an elevator 3 to store and unload it. The elevator 3 has a substantially rectangular shape, and moves up and down a hoistway 1 a located in the center of the parking device 1 in plan view. A plurality of parking shelves 4 for accommodating vehicles are formed on both the left and right sides of the hoistway 1a. At the four corners of the hoistway 1a, pillars (also referred to as sub-shelf pillars, which constitute part of the parking rack) made of H-shaped steel to be the guide rails 5 of the elevator 3 are erected (FIG. 3). Guide rollers 6 attached to the four corners 3 are engaged with the support column 5 in a rollable state. Each of the four guide rollers 6 is composed of a pair of rollers (not shown) spaced apart from each other in the vertical direction. Since the pair of upper and lower rollers are engaged with the guide rail 5 in the vertical direction, the elevator 3 is prevented from tilting left and right. A lateral feed transfer device (not shown) for transferring the pallet 2 onto the parking rack 4 and the elevator is installed on the lower surface of the elevator 3. As will be described later, a traverse rail 7 on which the pallet 2 can traverse is installed on the parking shelf 4.

  One end of a lifting wire rope (hereinafter referred to as a wire) 8 is connected to each of the four corners of the elevator 3 (see FIG. 3). In the machine room 18 on the uppermost floor of the parking apparatus 1, a wire hoisting device (hereinafter simply referred to as a hoisting device) 9 for winding and unwinding the wire 8 to raise and lower the elevator 3 is installed. The hoisting device 9 includes a forward / reverse rotating motor 10 with a brake, a driving sheave 12 that is rotated by the motor 10 via a speed reducer 11, and an attached turning pulley 13. The four wires 8 are supported by the four guide pulleys 14, 15 a, 15 b, and 15 c corresponding to the four wires 8, are turned around, and are wound around the drive sheave 11 together. Further, the other ends of these wires 8 are connected to one balance weight 16. Reference numeral 17 denotes a turning pulley. As shown in FIG. 3, one of the four guide pulleys 14 is fixed to the machine chamber 18 and is not displaced, so this is called a fixed guide pulley 14. However, the other three guide pulleys 15a, 15b and 15c are respectively suspended by an elevator leveling device (hereinafter simply referred to as a leveling device) 19 which will be described later. These are referred to as variable guide pulleys 15a, 15b, and 15c.

  The four wires 8 are moved up and down synchronously by driving the winding device 9. When the elevator 3 is tilted from the horizontal state, the level adjustment device 19 raises or lowers the corner of the elevator 3 slightly by raising or lowering an appropriate wire of the four wires 8. Can be resolved. Position sensors 20 and 21 for detecting whether the elevator 3 has reached each parking shelf 4 and whether or not each corner is in an appropriate position are installed at the four corners of the elevator 3, respectively. A sensor installed at one corner to which the wire 5 supported by the fixed guide pulley 14 is connected is denoted by reference numeral 20, and is referred to as a reference sensor (non-adjustment side sensor) 20. Each sensor installed at three corners to which the three wires 5 supported by the variable guide pulleys 15a, 15b, and 15c are connected is denoted by reference numeral 21, and is referred to as an adjustment side sensor 21. Detection plates (detected portions) 37 are installed at positions corresponding to the position sensors 20 and 21 in each parking shelf 4. As will be described later, the horizontal adjustment device 19 is operated by a detection signal of the detection plate 37 by the sensors 20 and 21.

  4 and 5 show an example of the leveling device. FIG. 4 is a perspective view showing an appearance of the horizontal adjustment device 19, and FIG. 5 is a perspective view showing an exploded state. The leveling device 19 has a split housing 22 attached to a beam 18a of the machine room 18, which is the top floor of the parking device 1, via a bracket 22a. In the housing 22, the variable guide pulley 15 having the guided plates 23 attached on both sides thereof is disposed. On the inner surface of the housing 22, a guide roller 24 that guides the vertical movement of the guided plate 23 is installed at a position that sandwiches the guided plate 23 from both the left and right sides. The variable guide pulley 15 is pivotally supported by the both guided plates 23. That is, the variable guide pulley 15 is movable up and down within the housing 22. A suspension sprocket 25 is suspended by a shaft 25a above the variable guide pulley 15 between the guided plates 23.

  An elevating drive device 26 and a support pulley 27 are attached to the upper end of the housing 22. The elevating drive device 26 has a motor 26a and a drive sprocket 26b fixed to the output shaft of the motor 26a. Further, a chain 28 for raising and lowering the variable guide pulley 15 via the suspension sprocket 25 and the guided plate 23 is wound around the drive sprocket 26b of the motor 26a, the suspension sprocket 25, and the support pulley 27. . One end of the chain 28 is fixed to the housing 22, and a balance weight 29 is connected to the other end. The variable guide pulley 15 is suspended by the chain 28. With this configuration, when the motor 26a rotates forward and backward, the chain 28 is wound up or fed out, and the variable guide pulley 15 is moved up and down. As described above, since the lifting wires 8 connected to the three corners of the elevator 3 are wound around the variable guide pulley 15 (see FIGS. 3 to 5), the variable guide pulley 15 is raised and lowered. Thus, the three corners of the elevator 3 are independently displaced in the vertical direction. As will be described later, one corner supported by the fixed guide pulley 14 is first aligned with the normal position. By doing so, the level of the elevator 3 is adjusted.

  Since the level adjusting device 19 is configured to suspend the variable guide pulley 15 downward, the variable guide pulley 15 is at a relatively low position when the floor of the machine room 18 is considered as a reference position. Therefore, since the arrangement of the wires 8 of the elevator 3 is also lowered, the level of the elevator driving device such as the hoisting device 6 is also lowered, and the structure of the machine room 18 is stabilized. Further, a bending moment due to the tension of the wire 8 of the elevator 3 is hardly applied to the leveling device 19. This is because the variable guide pulley 15 is in a suspended state. As a result, the strength burden on structural members such as the beam 18a of the machine room 18 that supports the leveling device 19 is also reduced.

  FIG. 6 shows another leveling device 31. This leveling device 31 uses the principle of a worm jack. Constituent members common to the above-described leveling device 19 are denoted by the same reference numerals, and description thereof is omitted. As shown, a drive motor 33 is attached to the upper part of the split housing 32, and a worm 33 a is fixed to the output shaft of the motor 33. On the other hand, the worm wheel 34 is supported by the housing 32 through a bearing so that the worm wheel 34 can rotate and cannot move up and down. A variable guide pulley 15 is disposed in the housing 32, and this variable guide pulley 15 is pivotally supported while being inserted into a guided member 35 having a U-shaped cross section. A guide roller 24 for guiding the vertical movement of the guided member 35 is installed on the inner surface of the housing 32 at a position sandwiching the guided member 35 from both the left and right sides. Thus, the variable guide pulley 15 is movable up and down within the housing 32.

  A non-rotating external screw member (screw rod) 36 in which a male screw is formed is erected on the upper end of the guided member 35. The screw rod 36 is threaded into a screw hole formed at the center of the worm wheel 34. The variable guide pulley 15 is suspended from the worm wheel 34 via a screw rod 36. Therefore, when the motor 33 rotates the worm wheel 34 forward and backward via the worm 33a, the screw rod 36 moves up and down to raise and lower the variable guide pulley 15. As a result, the lifting wire 8 of the elevator 3 wound around the variable guide pulley 15 is moved up and down independently. By doing so, the level of the elevator 3 is adjusted.

  Since the horizontal adjustment device 31 is also configured to suspend the variable guide pulley 15 downward, the variable guide pulley 15 is at a relatively low position. Therefore, the arrangement of the wires 8 of the elevator 3 is lowered. Further, since the variable guide pulley 15 is suspended, a bending moment is hardly applied to the leveling device 31.

  Next, the position sensors 20, 21 and the detection plate 37 will be described with reference to FIGS. The front position sensors 20 and 21 are installed at the four corners of the elevator 3. That is, each position sensor 20, 21 is installed in a portion of the elevator 3 that faces the column 5. The detection plate 37 is installed at the height position of each parking shelf 4 in the column 5. In the present embodiment, parking shelves 4 are installed on both sides of the hoistway 1a, and four detection plates 37 are installed in one horizontal plane on each parking floor. Of course, even if the parking rack 4 is a parking device installed on one side of the hoistway 1 a, the detection plate 37 is located at positions corresponding to the position sensors 20 and 21 at the four corners of the elevator 3, that is, at the four columns 5. On the other hand, it is mounted in one plane. When the elevator 3 reaches the parking shelf 4 and the position sensors 20 and 21 detect the corresponding detection plate 37, it is determined that the elevator 3 is at the designated parking shelf 4. Reference numeral 38 in FIG. 7 indicates a traverse wheel installed on the pallet 2, and reference numeral 39 indicates a traverse rail installed on the elevator 3. The pallet 2 can move between the elevator 3 and the parking rack 4 by rolling the traversing wheel 38 on the traversing rail 39 and the above-mentioned traversing rail 7 of the parking rack 4.

  As shown in the drawing, each position sensor 20, 21 is composed of an upper sensor 20a, 21a and a lower sensor 20b, 21b. The upper sensors 20a and 21a and the lower sensors 20b and 21b are installed vertically with a predetermined interval. The vertical width of the detection plate 37 is dimensioned to cover the upper sensors 20a and 21a and the lower sensors 20b and 21b. Therefore, if all the upper and lower sensors 20a, 21a, 20b, and 21b at the four corners of the elevator detect the detection plate 37, the elevator 3 is in a horizontal state, and the height position at which the pallet 2 can be transferred to and from the parking shelf 4 (regular Position). If the elevator 3 (corner thereof) is positioned slightly below the normal position, only the upper sensors 20a, 21a detect the detection plate 37, and if the elevator 3 is positioned slightly above, only the lower sensors 20b, 21b are detected. Detects the detection plate 37. At this time, it is determined that the corner portion of the elevator 3 is slightly displaced vertically from the normal position. Then, the level of the elevator 3 is adjusted by moving the wires 8 corresponding to the misaligned corners up and down by the leveling devices 19 and 31. However, three of the four corners of the elevator 3 can be moved up and down by the leveling devices 19 and 31.

  The normal position of the elevator 3 is set by detection of the detection plate 37 by the reference sensor 20 at the corner to which the wire 5 supported by the fixed guide pulley 14 is connected among the four position sensors 20 and 21. . That is, when the elevator 3 moves up and down and the reference sensor 20 reaches a predetermined position corresponding to the parking rack 4 and both the reference upper sensor 20a and the lower sensor 20b detect the detection plate 37, the elevator 3 detects the reference point (reference sensor 20 It is determined that the corner (with a corner) is in the normal position and stops. On the other hand, if only one of the upper and lower sensors 20a and 20b has detected the detection plate 37, the hoisting device 9 slightly moves the elevator 3 upward or downward to stop until both the sensors 20a and 20b are detected. . At this time, if any of the adjustment side sensors 21 at the other three corners of the elevator 3 detects the detection plate 37 in both the upper part 21a and the lower part 21b, the elevator 3 is stopped at a normal position in a horizontal state. Thus, the pallet 2 is smoothly transferred between the elevator 3 and the parking rack 4.

  If any or all of the adjustment-side sensors 21 at the other three corners of the elevator 3 detect only one of the upper part 21a and the lower part 21b, the leveling devices 19 and 31 corresponding to the sensors are activated. Then, the wire 5 is displaced upward or downward until both the sensors 21a and 21b are detected. If the detection plate 37 is detected in both the upper part 20a, 21a and the lower part 20b, 21b of all the sensors by such an operation, it is determined that the elevator 3 is stopped at a normal position in a horizontal state, and the elevator 3 and the parking rack 4 The pallet 2 is smoothly transferred between the two.

  As shown in FIG. 2, since the elevator 3 is guided by the four columns 5 at the four corners, the elevator 3 is not greatly inclined. That is, when the corner where the reference sensor 20 is installed stops at the normal position, any of the upper sensor 21a and the lower sensor 21b is detecting the detection plate at any of the other three corners. The vertical width of the detection plate 37 is set to such a size as to be in such a state.

  FIG. 8 shows a driving operation panel 40 installed in the parking apparatus 1 and a control device 41 connected to the driving operation panel 40. When a user or the like operates the operation control panel 40, the control device 41 receives signals from the hoisting device 6, leveling devices 19, 31, position sensors 20, 21, a pallet lateral feed transfer device (not shown), and the like. Further, based on a preset program, an operation command is issued to these devices and the door of the entrance / exit (reference numeral 1b in FIG. 1) and an alarm device (not shown) to control the operation of the parking device 1.

  The operation control of the elevator 3 by the control device 41 will be described with reference to FIGS. As shown in FIG. 13, the reference symbol RF in the drawing for the position sensor indicates the elevator right front corner sensor, RR indicates the right rear corner sensor, LF indicates the left front corner sensor, and LR indicates the left rear corner sensor. Indicates a sensor. In this embodiment, RR is a reference sensor 20, and other RF, LF, and LR are adjustment side sensors 21. However, the settings of the reference sensor 20 and the adjustment side sensor 21 are not limited to the above.

  In FIG. 9, (1) when a parking shelf to be entered and exited is specified by operating the driving operation panel 40, the elevator 3 moves up and down to the designated parking shelf. (2) When either the upper part or the lower part of the sensor RR, which is a reference sensor for the elevator, detects the detection plate, (3) the elevator is stopped. (4) If both the upper and lower sensors RR detect the detection plate, it is determined that the corner where the reference sensor is installed is stopped at the normal position. The elevator 3 is slightly moved upward or downward by the hoisting device 9 until both the lower sensors RR detect the detection plate. In this way, when the corner where the reference sensor is installed stops at the normal position, it is determined whether or not (6) the detection plate is detected in both the upper and lower sides of the adjustment side sensor, for example, the sensor LF. If the detection plate is detected in both the upper part and the lower part, (7) it is determined whether or not the detection plate is detected in both the upper and lower parts of other adjustment side sensors, for example, the sensor LR. If the detection plate is detected in both the upper part and the lower part, (8) it is determined whether the detection plate is detected in both the upper part and the lower part of the remaining adjustment side sensor RF. (9) If the upper and lower detection plates are detected, it is determined that the elevator is stopped in a horizontal state at the normal position, a pallet delivery permission command is issued to the parking rack, and the lateral feed The transfer device operates to transfer the pallet.

  However, as shown in FIG. 10, when only one of the upper part and the lower part of the sensor LF is detected in (6) of FIG. 9, (10) whether or not it is the upper LF sensor. Is judged. If only the upper LF sensor detects (11), the level adjustment devices 19 and 31 (represented by reference numeral 19) are instructed to pull up the corresponding variable guide pulley 15a, and the corner of the elevator is slightly raised. Let (12) When the lower LF sensor also detects the detection plate (when it reaches the normal position), (13) The pulling command to the leveling device 19 is stopped and the process proceeds to (7) in FIG. If it is not the upper LF sensor but the lower LF sensor that is detected in (10) above, (14) the leveling device 19 is instructed to lower the variable guide pulley 15a, and the corner of the elevator is moved. Lower slightly. (15) When the upper LF sensor also detects the detection plate (when it reaches the normal position), (16) the lowering command to the leveling device 19 is stopped and the process proceeds to (7) in FIG.

  As shown in FIG. 11, when only one of the upper part and the lower part of the sensor LR is detected in (7) of FIG. 9, it is determined whether or not (17) the upper LR sensor is detected. Is done. If only the upper LR sensor detects (18), the level adjustment device 19 is instructed to pull up the corresponding variable guide pulley 15b to slightly raise the corner of the elevator. (19) When the lower LR sensor also detects the detection plate (when it reaches the normal position), (20) stops the pulling command to the leveling device 19 and shifts to (8) in FIG. If it is not the upper LR sensor but the lower LR sensor that is detected in (17) above, (21) the leveling device 19 is instructed to lower the variable guide pulley 15b, and the corner of the elevator is moved. Lower slightly. (22) When the upper LR sensor also detects the detection plate (when it reaches the normal position), (23) the lowering command to the leveling device 19 is stopped and the process proceeds to (8) in FIG.

  As shown in FIG. 12, when only one of the upper part and the lower part of the sensor RF is detected in (8) of FIG. 9, (24) it is determined whether or not it is the upper RF sensor. Is done. If only the upper RF sensor detects (25), the level adjustment device 19 is instructed to pull up the corresponding variable guide pulley 15c to slightly raise the corner of the elevator. (26) When the lower RF sensor also detects the detection plate (when it reaches the normal position), (27) stops the pulling command to the leveling device 19 and shifts to (9) in FIG. If it is not the upper RF sensor but the lower RF sensor that is detected in (24) above, (28) the leveling device 19 is instructed to lower the variable guide pulley 15c, and the corner of the elevator is moved. Lower slightly. (29) When the upper RF sensor also detects the detection plate (when it reaches the normal position), (30) the lowering command to the leveling device 19 is stopped and the process proceeds to (9) in FIG.

  As described above, first, the corner where the reference sensor is installed is stopped at the normal position by the signal of the reference sensor 20. Therefore, the variable guide pulley 15 is not particularly required for the wire connected to the corner where the reference sensor 20 is installed, and the fixed guide pulley 14 may be used. Of course, you may install the variable guide pulley 15 to which the level adjustment apparatus 19 and 31 was connected also to this wire. In that case, the vertical movement of the elevator 3 for alignment may be performed not by the hoisting device 9 but by the leveling devices 19 and 31.

  As in step (6) in FIG. 9, after the alignment of the corner where the reference sensor 20 (RR) is installed, the alignment by the adjustment-side sensor 21 (LF) at the opposite corner is performed. This is because the other two corners (RF and LR) are likely to reach the normal position at the same time. Of course, there is no problem in changing the alignment order. In short, the corners of the reference sensor 20 need only be aligned first.

  In the above embodiment, the level adjustment device 19 using the worm jack and the chain winding type level adjustment device 31 are exemplified, but the present invention is not limited to this configuration. Instead of the worm gear, another gear mechanism such as a spur gear train having a reduction function may be used. For example, an inner screw may be formed at the center of the last spur gear of the spur gear train and the screw rod 36 may be screwed together. Even with this configuration, the wire 5 can be pulled up and down by a small amount. That is, it is possible to finely adjust the level of the elevator.

  In the said embodiment, although the position sensors 20 and 21 were installed in the elevator 3, and the detection board was installed in the parking shelf 4 side, it is not limited to this structure. A position sensor may be installed in each parking shelf 4 (including the column 5), and detection plates 37 for detection by the position sensors 20 and 21 may be installed at the four corners of the elevator 3.

  Although the pallet type is illustrated in the above embodiment, the present invention can also be applied to a palletless type parking apparatus that teaches vehicle tires or supports them with comb teeth without using a pallet. Furthermore, various known switches such as a photoelectric switch and a proximity switch with a built-in reed switch can be used as the position sensor. In addition, even if there is a large difference in the amount of extension of each wire, the leveling device can easily adjust the level, so that it can be used with high-rise elevator parking devices that increase the amount of wire. Can do.

  Since the inclination of the elevator from the horizontal state can be eliminated with a simple configuration, the pallet for mounting on the vehicle can be smoothly transferred between the parking rack and the elevator in the parking apparatus.

It is a longitudinal section showing roughly an elevator type parking device which is one embodiment of a parking device of the present invention. It is an II-II line arrow directional view which shows the parking floor in FIG. It is a perspective view which shows the elevator in the parking apparatus of FIG. It is a perspective view which shows the external appearance of an example of the elevator leveling apparatus in the parking apparatus of FIG. It is a perspective view which shows the state before the assembly of the leveling apparatus of FIG. It is a longitudinal cross-sectional view which shows the other example of the level adjustment apparatus of the elevator in the parking apparatus of FIG. It is a side view which shows an example of the position sensor in the elevator of FIG. It is a block diagram which shows an example of the driving | operation control panel and control apparatus in the parking apparatus of FIG. It is a flowchart which shows a part of driving control of the parking apparatus by the control apparatus of FIG. It is a flowchart which shows the other part of the driving control of the parking apparatus by the control apparatus of FIG. It is a flowchart which shows the further another part of the driving control of the parking apparatus by the control apparatus of FIG. It is a flowchart which shows the further another part of the driving control of the parking apparatus by the control apparatus of FIG. It is a top view which shows arrangement | positioning of the position sensor of the elevator used as the premise of the description by the flowchart in FIGS.

Explanation of symbols

1 ... Parking device
1a ... hoistway
2. Pallet
3 ... Elevator
4. Parking lot
5 .... Guide rail
6. Guide roller
7 ... Traverse rail
8 ... Wire
9... Winding device
10 .... Motor
11. Reducer
12 ... Drive sheave
13 .... Turning pulley
14 .... Fixed guide pulley
15, 15a, 15b, 15c... Variable guide pulley
16. Balance weight
17 .. Turning pulley
18. Machine room
19 ··· Leveling device
20 .... Position sensor (reference sensor)
21... Position sensor (adjustment side sensor)
22 .... Housing
23 ... Guide plate
24 .... Guide roller
25 ... Hanging sprocket
26... Lifting drive device
27 ... Support pulley
28 ... Chain
29 ... Balance weight
31 ··· Leveling device
32 .... Housing
33 .... Motor
33a ... Warm
34 ... Worm wheel
35 ... Guide plate
36 ··· Screw rod
37 ... Detection plate
38 .... Traversing wheel
39 ··· Traversing rail
40 .... Driving operation panel
41... Control device
M ・ ・ ・ ・ Vehicle

Claims (10)

A parking shelf for accommodating vehicles, formed in multiple stages;
Elevators for transporting vehicles, with suspension wires connected to the four corners,
A hoisting device for raising and lowering the elevator by hoisting and feeding the four wires;
About at least three wires among the above four wires, variable guide pulleys respectively supporting portions between the elevator and the hoisting device;
An elevator type parking apparatus comprising: a level adjustment mechanism for adjusting the level of the elevator by supporting the variable guide pulley so as to be displaceable and pushing and pulling the variable guide pulley. The parking shelves are installed on the left and right sides of the elevator hoistway,
One of a position sensor and a portion to be detected that can be detected by the position sensor is installed in the vicinity of each of the wire connection sites at the four corners of the elevator,
The elevator type parking according to claim 1, wherein the other of the position sensor and the detected part is installed in each part of the parking shelf facing the one of the position sensor and the detected part of the elevator. apparatus. The parking shelf is installed only on one of the left and right sides of the elevator hoistway, and the elevator guide member is installed on the other side.
One of a position sensor and a portion to be detected that can be detected by the position sensor is installed in the vicinity of each of the wire connection sites at the four corners of the elevator,
The other of said position sensor and said to-be-detected part is installed in each site | part which opposes one of the position sensor and to-be-detected part of said elevator in each parking shelf and said guide member. Elevator parking equipment.   The elevator system according to claim 2 or 3, wherein each position sensor is composed of a pair of an upper sensor element and a lower sensor element that are vertically separated, and each sensor element is configured to be able to detect the detected portion. Parking device.   The horizontal adjustment mechanism is installed in the uppermost machine room of the parking apparatus, the variable guide pulley is suspended from the horizontal adjustment mechanism, and the horizontal adjustment mechanism is configured to drive the variable guide pulley up and down. The elevator type parking apparatus according to claim 1. The horizontal adjustment mechanism has an outer screw member and an inner screw member that are screwed together, and one of the screw members is configured to be non-rotatable and linearly movable in the axial direction, and the other is rotatable and pivoted. It is configured not to go straight in the direction,
6. The elevator type parking apparatus according to claim 5, wherein the variable guide pulley is suspended by a straight screw member, and a rotary drive device is coupled to the rotatable screw member.   The horizontal adjustment mechanism includes a worm gear, an inner screw is formed at the center of the worm wheel of the worm gear, and an outer screw member that is non-rotatable and linearly movable is screwed to the inner screw. The elevator type parking apparatus according to claim 6, wherein the variable guide pulley is suspended by a member, and a rotary drive device is connected to the worm of the worm gear. The horizontal adjustment mechanism includes a transmission line, a driving device for winding and unwinding the line, and an engagement member connected to the variable guide pulley,
6. The elevator system according to claim 5, wherein the rope is wound around the engaging member, and the variable guide pulley is lifted and lowered together with the engaging member when the driving device winds and feeds the rope. Parking device. A control device for controlling the operation of the hoisting device and the leveling mechanism;
The controller is configured to receive a detection signal from each position sensor;
If there are three wires supported by the variable guide pulley among the four wires, the detection signal from the non-adjustment position sensor near the connection part of the wire not supported by the variable guide pulley has been received. Subject to
In addition, when all four wires are supported by the variable guide pulley, on the condition that the detection signal from the adjustment side position sensor near the connection part of one of the wires is received,
When the detection signal is not received from any other adjustment side sensor, the operation of the horizontal adjustment mechanism is commanded so as to displace the variable guide pulley of the wire corresponding to the unreceived adjustment side sensor. The elevator-type parking apparatus according to any one of claims 2 to 4, wherein the elevator-type parking apparatus is configured to instruct an operation stop of the horizontal adjustment mechanism when a detection signal from the adjustment-side sensor is received by displacement. . A control device for controlling the operation of the hoisting device and the leveling mechanism;
The controller is configured to receive a detection signal from each position sensor;
If there are three wires supported by the variable guide pulley among the four wires, the detection signal from the non-adjustment position sensor near the connection part of the wire not supported by the variable guide pulley has been received. Subject to
In addition, when all four wires are supported by the variable guide pulley, on the condition that the detection signal from the adjustment side position sensor near the connection part of one of the wires is received,
Based on a detection signal from one of the upper sensor element and the lower sensor element of the adjustment side sensor, the position deviation of the elevator on either the upper or lower side of the adjustment side is determined, and the variable guide pulley of the wire corresponding to the adjustment side sensor is provided. The elevator-type parking apparatus according to claim 4, wherein the elevator-type parking apparatus is configured to command the operation of the horizontal adjustment mechanism so as to be displaced.

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