JPH02153174A - Two stage parking device - Google Patents

Abstract

PURPOSE:To minimize a space effectively by providing a rising and falling post in a width dimension of a housing space for a car and connecting lifters of both right and left to two places of back and forth of the side of a lift pallet corresponding to them with flexible members. CONSTITUTION:A device 1 consists of a rising and falling frame body 2 rising, falling and guiding a lift pallet 23, a rising and falling driver 14, a safety device attached to a lifter 30, a lock device 62 and others. The frame body 2 is framed and formed in a width dimension of a housing space for a car 80. Lifters 30 of both right and left are connected to two places of back and forth of the sides of both right and left of the pallet 23 with flexible members 60 and 61. In a state of loading the car on the pallet 23, a lifting chain 22 is driven, the weigh of the pallet 23 and car 80 is supported by vertical upward component of a force of tensile force of the members 60 and 61, and the pallet 23 is moved up and down. Accordingly, the space can be effectively minimized.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a parking device for a car, and more particularly to a two-tier parking device that can accommodate cars in two levels, upper and lower.

(Conventional technology and its solutions) Recently, we have entered an era in which the number of cars owned is two per household, and securing parking spaces has become a serious problem, so various types of two-tiered parking with 8 spaces have been developed. There is.

Typical parking devices include those shown in FIGS. 12(a) and 13(a), and the parking device 81 shown in FIG.
A lift pallet 83 is interposed between the pillars 82 so as to be movable up and down, and the parking device 84 shown in FIG. 13(b) has two pillars for lifting and lowering books. 8
A lift pallet 86 is movably provided between the vehicle 5 and the lift pallet 86, and the lift pallet 86 is supported from one side of the vehicle length of the automobile 80 to be lifted and lowered.

However, in the parking device 81 of FIG. 12(a), as shown in FIG. 12(b), a space B for the device is required on the left and right sides of the plane space A for accommodating the automobile 80. Similarly, the parking device 84 requires a device space B on one side of the storage plane space A, and both devices 81 and 84 require a fairly large installation space DI=A+28. D2=A+B was required.

Therefore, the first object of the present invention is to make the installation space D smaller than the conventional installation spaces DI and D2, by providing the lifting support 6 within the widthwise dimension of the accommodation space of the automobile 80, so that the installation space D= A10G small space Toshikari No. 1
The second purpose is to solve various structural problems when the installation space D is used.If the installation space D is used, the relationship between the center of gravity MG of the automobile 80 and the lifting column 6 is Since the distance becomes long (see Fig. 1), there is a problem that if a rigid reinforcing support frame is attached to the support structure of the lift pallet, it becomes difficult to get on and off the car 80 on the lift pallet 23. Furthermore, since the distance between the vehicle center of gravity position G and the lifting column 6 becomes longer, the load on the lifting device that moves the lift pallet 23 up and down increases.
The chain and wire of the device were cut, the reducer gear was damaged,
If the tension of the wire, chain, etc. that lifts and lowers the lift pallet 23 is extremely reduced due to damage to the drive shaft, etc., a safety device to stop the lift pallet 23 is required. (a)
As shown in (b), a stopper claw 91 is pivotally attached via a bracket 90 to an elevating member 89 that is integrally provided with the lift pallet and moves up and down along an elevating column 88. A spring 93 having a predetermined spring pressure is connected between the seat 92 and the lifting member 89.
A wire wheel 95 is attached to the stopper claw 91 on which a lifting wire 96 is hooked via a shaft 94.
is pivotally mounted, and the lifting member 89 has a stopper claw 91.
A hole 89a is provided so that a claw portion 91a formed at the tip thereof can be moved in and out toward the lifting column 88, and stoppers 97 that engage with this are installed at predetermined intervals on the column 88 side.

In the device provided in this way, under normal conditions as shown in FIG.
9, the wire wheel 95 is vertically supported, and the claw portion 91a is recessed through the hole 89a. In this state, the drive chain and wire are cut during the lifting and lowering process.
If the tension of the lifting wire 96 that lifts and lowers the lift pallet is extremely reduced due to damage to the reducer gear, damage to the drive shaft, etc. (see FIG. 14(b)), the stopper claw 91 will respond to the restoring force of the spring 93. and wire wheel 95
The claw portion 9 is rotated around the pivot point by its own weight.
1a protrudes from the hole 89a and comes into contact with the support column 88, and when the claw portion 91a descends to the position of the stopper 97 and engages, the lift pallet and the automobile 80 are stopped. is actuated only by the restoring force of the spring 93 and the weight of the wire wheel 95, and since the falling acceleration of the pallet on which the car 80 is placed when this tension is reduced is extremely large, the It is unreliable to engage with the stopper 97 directly below, and as a result, the falling distance becomes long, and the drop to the stopper 97! As the impact force increases, the degree of inclination of the pallet also increases, causing problems such as damage to the vehicle 80 and the device. The present invention provides a two-level parking device that is equipped with a reliable safety device that can ensure stable lifting of pallets and that can be activated and stopped instantly when the tension of the lifting wire is reduced. It's about doing.

(Means for Solving the Problems) In order to solve the above-mentioned technical problems, the present invention provides a two-stage parking system in which a lifting frame body equipped with a drive unit for lifting and lowering a lift pallet on which a car is placed is provided. A pair of lifters are installed on one side of the lift pallet that is the width of the vehicle, and are moved up and down by the drive unit along the guide grooves of the left and right main columns of the lifting frame, and On the left and right sides of the sides, rollers that roll in the guide grooves are pivotally mounted, and connection rods that are erected upward and are suspended in a loose fit manner in the sliding holes of the suspension members provided on the left and right lifters. and connecting at least two front and rear sides of the lift pallet corresponding to the left and right lifters, respectively, with a flexible member so that the lift pallet can be suspended horizontally,
When the lift pallet touches the ground, the lifter descends along the connecting rod to loosen the flexible member.

In the above-mentioned two-stage parking device, the lifter includes a stop lever that is provided opposite to the main support via a shaft, and a stop lever that is provided opposite to the connection rod and is connected to the support lever by being resiliently attached to the support lever via a coil spring. An actuating lever consisting of a shaft pin having a roller that contacts the rod is provided, and both levers are biased toward the main support by a torsion coil spring, and stoppers are provided at a predetermined interval on the opposite surface of the stop lever of the main support. Further, a cutout surface of a predetermined length is provided on the outer peripheral portion of the connecting rod facing the operating lever, so that when the upward force for suspending the lifter decreases, the lift pallet is suspended. Due to the displacement of the lifter in the height direction relative to the connecting rod installed upright on the lift pallet, which is caused by the difference between the downward force Elf acting on the lifter due to the tension of the flexible member held by the lifter and the gravitational acceleration of the lift pallet. The present invention resides in a two-tiered parking device equipped with a safety device that operates the stop lever and the operating lever to prevent the lifter from falling and stop the lift pallet.

(Function) In the two-stage parking device configured as described above, the lift pallet on which the car is placed is suspended horizontally with the balance of each suspension part maintained, and the lift pallet is lightly moved up and down. From the state in which the lifter is in contact with the ground, the lifter is further lowered along the connecting rod, whereby the flexible member is gradually loosened and the door can be opened and closed, allowing access to and from the vehicle.

In addition, in the event of an abnormality in which the upward force that suspends the lifter decreases, the lifter is affected by the difference between the downward acceleration that acts on the lifter due to the tension of the flexible member that suspends the lift pallet and the Φ force acceleration that acts on the lift pallet. The lift pallet is prevented from falling by utilizing the instantaneous relative displacement in the height direction with respect to the lift pallet.

(Embodiment) Next, an embodiment of the present invention will be described according to the drawings. In the figure, 1 is the entire two-stage parking device, and the device 1 is a lifting frame for guiding the lift pallet 23 up and down. 2 and a lift pallet 23 and a lifter that are moved up and down via a lifting drive unit 14 that is grounded on the frame 2 and a lifter 30 that is moved along the lifting support 6 of the lifting frame 2 by the drive unit 14. It is comprised of a safety device 43 attached to the lift pallet 30 and a locking device 62 that stops and holds the lift pallet 23 at a predetermined height position.

This elevating frame 2 consists of a base frame 3 and a pair of left and right elevating columns 6. The base frame 3 is attached to, for example, a foundation cast in the ground via anchors or the like, and the frame member 4a ,
4b, 4c, and 4d form a frame in a substantially rectangular shape that is slightly wider than the width dimension of the planar storage space A of the automobile 80, and the left and right frame members 4c, 4d extend forward (in the direction in which the automobile enters) by a predetermined length. Support legs 5a, 5t) are extended. Lifting columns 6 are erected on the left and right sides of the base frame 3 formed in this manner. This lifting column 6 is formed in a substantially symmetrical shape, and has a guide groove 8 at the front of the frame member 4a of the base frame 3 for guiding the lifting pallet 23 up and down.The main column has an H-shaped cross section and a predetermined length. 7 is erected, and on the rear side of the main column 7, a reinforcing frame member 9 is attached obliquely to the top of the column 7 from the frame member 4b side, and reinforcing members 10 are installed at a predetermined interval between the two. installed. In addition, a connecting frame 11 is horizontally suspended between the tops of the left and right lifting columns 6 for reinforcement and connection, and a chain guide pulley for a lift chain 22 is connected to the top of both branches 6 via a bracket 12.
13 are each pivotally mounted. An elevating drive section 14 is installed on the base frame 3 of the elevating frame 2 formed in this manner.

Reference numeral 15 denotes a drive motor for the lifting drive unit 14, and the motor 15 is connected to a worm reducer 16 having a reverse rotation prevention mechanism. Reference numeral 17 denotes a main shaft with a bearing disposed on the base frame 3. It is rotatably supported via 18a, 18b, and 18C, and a chain wheel 19 is keyed at each end thereof in correspondence with a chain guide pulley 13 provided at the top of the column 6. Further, two-row chain wheels 20a and 20b, on which, for example, an endless two-row drive chain 21 is hooked, are keyed to the output shaft of the speed reducer 16 and the corresponding main shaft 16, respectively.

Chain wheel 1 of drive unit 14 provided in this way
A lift chain 22 is hooked between the chain guide pulley 9 and the corresponding chain guide pulley 13, and one end of the chain 22 is connected to the upper end of the lifter 30 connected to the lift pallet 23, and the other end is connected to the lifter 30 connected to the lift pallet 23. They are each detachably connected to the lower side of the lifter 30.

Reference numeral 23 denotes a lift pallet on which the automobile 80 is placed and which is moved up and down along the lifting columns 6.6, and is formed into a substantially rectangular shape by a steel plate member 24 and a frame member 25 on which the automobile 80 can be placed. , the lift pallet 23 has lifting columns 6, 6
On the other hand, the longitudinal end (width direction) side of the vehicle 80 placed thereon is lifted and lowered, and on the left and right sides of this pallet 23 there are paired guide frames 26 for the wheels of the vehicle 80.
The guide frame 26 is installed so that the interval is set to a predetermined dimension H, and the width of the guide frame 26 is set to a dimension that can correspond to the wheelbase dimensions of almost various automobiles 80. In addition, the length of the guide frame 26 is set to a length L that can correspond to the wheelbase dimensions of almost all kinds of automobiles 80.
The boarding side thereof is formed in an expanded shape. Furthermore, rollers 28 that roll in the guide grooves 8 of the left and right main columns 7 are pivotally attached to both ends of the lift pallet 23 on the lifting columns 6 side via brackets 27, and the left and right brackets 27 are equipped with lifters. A connecting rod 29 of a predetermined length connected to the connecting rod 30 is detachably provided upright.

Reference numeral 30 denotes the above-mentioned left and right lifters, to which lift chains 22 are connected to the upper and lower ends thereof, and which move up and down along the lifting column 6 integrally with the lift pallet 23 suspended via a connecting rod 29. Connecting convex portions 31 and 32 are formed on the upper and lower sides of the lifter 30 on the side of the pillar 6, and the convex portions 31.
32 is a connecting screw rod 3 that connects the lift chain 23.
3a.

33b is screwed on so as to be adjustable. Further, at the bases of both convex portions 31 and 32, there are upper and lower rows 534 that roll within the guide groove 8 of the main support 7 along the groove curved wall 7a.
35 are pivotally connected via shaft pins 36a, respectively.

Further, a support member 37a that protrudes into the guide groove 8 of the main support 7 is attached to the side surface (surface on the main support 7 side) of the lifter 30 between the convex portions 31 and 32, and a shaft pin 36b is attached to the support member 37a.
A guide roller 38 that restricts the movement of the lifter 30 toward the main support 7 side (groove side wall 7b) is pivotally mounted via the guide roller 38 . Further, a support member 37b that protrudes into the guide groove 8 is attached to the slope of the convex portion 32 on the lower side, and a row 539 rolling on the rear groove 1!7c of the guide groove 8 is attached to the support member 37b on the shaft pin 36c.
It is pivotally connected via. In addition, at a predetermined position on the opposite side surface of the lower convex portion 32 to which the roller 35 is attached, a sliding hole 40a is provided which protrudes laterally and supports the connecting rod 29 erected on the lift pallet 23 in a loose-fitting manner. A hanging member 40 is attached, and the connecting rod 29 is inserted and suspended through a lock nut so that the hanging length can be adjusted. Further, a corner portion of the lower surface of the upper convex portion 31 is cut out at a predetermined angle to form a locking surface 31a. A connecting member 41 in the form of a thick wall vibrator is fitted and connected between the left and right lifters 30 provided in this manner, and the left and right protruding portions of the connecting member 41 are connected to the lift pallet 23 described above. - It constitutes a fixing part 42 to which a flexible member 60, 61 for horizontally suspending is attached. The left and right lifters 3 connected in this way
0 are each equipped with a safety device 43.

44 is a shaft of the safety equipment @ 43, and the coaxial shaft 44 is rotatably supported in a predetermined position below the position where the connecting member 41 of the lifter 30 is attached, and this shaft 44
A stop lever 45 is provided on the shaft portion 44a facing the main support 7 and has a locking surface 45a at the tip, and an actuation lever is provided on the shaft portion 44b opposite to the connecting rod 29 on the opposite side. 47 are fixed by setscrews 46 so that their relative angles can be adjusted. Further, the actuation lever 47 consists of a support lever 48 and an actuation pin 49.
A sliding hole 48a is provided at the tip end of the shaft 44, through which the operating pin 49 is slidably inserted in a direction perpendicular to the axis of the shaft 44. Further, a fork-shaped bracket 50 is attached to the tip end side of the operating pin 49, and a roller 51 is rotatably attached via the pin 52. A regulation hole 49a in the form of a long groove with a predetermined length is formed through the operating pin 49, and a coil spring 53 having a predetermined spring pressure is inserted into the operating pin 49 so that the operating pin 49 is connected to the support lever 48. A stopper pin 54 is inserted into the regulating hole 49a from the side of the support lever 48 so as to fit through the regulating hole 49a. The actuating pin 49 mounted in this manner is urged in the direction indicated by the solid line arrow by the spring 53, and the left end of the regulating hole 49b in the figure abuts against the stopper pin 53, thereby regulating the length of the operating pin 49 protruding from the support lever. There is. Further, a torsion coil spring 55 is interposed between the stop lever 45 and the lifter 30, and one arm 55a of the spring 54 is latched to the stop lever 45, and the other arm 55b is attached to the side of the lifter 30. The stop lever 54 and the actuating lever 49 are selectively engaged with a plurality of locking holes 56 along an arc of a predetermined radius from the center of the shaft 44, and the stop lever 54 and the operating lever 49 are urged in the direction of arrow a through the shaft 44. The [''-ra 51 of the actuating lever 47 is brought into contact with a predetermined position on the outer periphery of the connecting rod 29, and in this contact state, the spring pressure of the coil spring 53 that hits the actuating lever 49 is equal to the spring pressure of the torsion coil spring 55. The operating pin 49 is set to be in a fixed state with respect to the support lever 48 so that its protruding length does not vary. Further, a notch 29a having a depth tl is provided below the position of the connecting rod 29 where the roller 51 comes into contact and extends over a predetermined length 1 so as to be opposed to the roller 51. Further, a stopper 57 is fixed to the surface 7A of the main column 7 opposite to the stop lever 45 over a predetermined range from the top side by welding means or the like at a predetermined interval fJ1, and the tip side of the stop lever 45 is activated. The roller 51 of the lever 47 is held in contact with the outer periphery of the connecting rod 29 with a distance t from the stopper 57. Note that the interval 11 between the stoppers 57 is the amount by which the lift pallet 23 will fall when the tension of the lift chain 22 is reduced, and therefore, the interval 11 is set to such an extent that the automobile 80 will not skid on the pallet 23. ing.

Further, the distance fJ1 between the stoppers 57 and the length 1 of the cutout surface 29a of the connecting rod 29 have a relationship of 1>11.

The left and right lifters 30 equipped with safety devices 43 in this way
For example, there is a flexible structure between the left and right fixing parts 42 of the connecting member 41 that connects the lift pallet 23 and the hanging members 58 and 59 that are protrudingly provided at predetermined positions on the front and back of the left and right sides of the lift pallet 23. A flexible member 60, 61 of a predetermined length, such as a cord, wire rope, chain, chain, etc., has fittings attached to both ends of the flexible member 60, 61, and is attached to a hooking member 58, 59 and a fixing member 4, respectively.
2, and when the lifter 30 is suspended by the tension F of the lift chain 22, the flexible member receives a tension T^,
The TB acts to raise and lower the lift pallet 23 together with the automobile 80 on which it is suspended horizontally. Note that during this elevation, the roller 51 of the safety device 43 remains in contact with a predetermined position on the outer periphery of the connecting rod 29.

Next, 62 is a locking device, and the lift pallet 23
When the lifter 30 stops at a predetermined position, the lifter 30 is locked and held stopped.
A bracket 63 is attached to a predetermined position on the rear surface 7B of the left and right main struts 7 corresponding to the lifter 30 when the lifter 30 is stopped at a predetermined height position, and an operating shaft 64 rotates between the two brackets. supported and cooperating shaft 6
An actuating lever 65 is attached to the end of one of the main pillars 4 so as to be adjustable. In addition, this operating lever 65
A mounting piece 66a is installed at a predetermined height position of the main support 7 on the side where the
and the support piece 66b, the bracket 66 has an abbreviated cross-section.
is attached to the surface 7A of the support column 7 via a mounting piece 66a so as to extend laterally, and a long groove hole 66C is provided vertically extending through the projecting portion of the mounting piece 66a. Further, 67 is an operation handle of the locking device 62, and is a support portion 67a.
The support portion 67a is formed to a predetermined length and inserted into the long slot hole 66C, and the support portion 67a is pivotally attached to a predetermined position of the support piece 66b via a pin 68, so that the handle 67 and the actuation lever 65 are connected to each other. An actuating rod 69 is pivotally mounted between the tips. Further, a lock lever 70 having a locking surface 70a is attached to the operating shaft 64 at a position corresponding to the left and right lifters 30 at a predetermined angle with respect to the operating lever 65 so that its angular position can be adjusted. The lock device W162 provided in this manner is in a position where the operating handle 67 is in a horizontal position and the lock lever 70 is in an unlocked position retracted from the lock surface 31a of the upper convex portion 31, and the operating handle 67 is held at a predetermined angle. When pushed down to the position, the lock lever 70 is rotated and the lock surface 70a is aligned with the lock surface 31 of the upper convex portion 31.
a and is held in the locked position. Note that latching portions 71a and 71b are formed at the upper end of the bracket 71 so as to be rotatable along the long groove hole 66c of the bracket 66, and for latching the operating handle 67 in the locking and unlocking positions. Reference numeral 72 denotes a safety switch that is installed opposite to the operating handle 67 and is relayed to the electric circuit of the drive unit 14. When the operating handle 67 is in the horizontal unlocked position, the circuit is turned on and the handle 67 is turned on. The circuit is relayed to turn off when operated to the lock position. Although not shown, the operating handle 67 is arranged opposite to an electromagnetic solenoid to electrically detect when the lift pallet 23 reaches a predetermined height position, and actuate the electromagnetic solenoid based on this detection signal to lock it. The configuration may be such that

As described above, in this embodiment, the lifting frame 2 equipped with the drive unit 14 for lowering the lift pallet 23 on which the automobile 80 is placed is installed on one side of the lift pallet 23 corresponding to the width of the vehicle. A pair of lifters 30 are provided which are moved up and down by the drive unit 14 along the guide grooves 8 of the left and right main columns 7 of the lifting frame 2, and guide grooves 8 are provided on the left and right of the main columns 7 of the lift pallet 23. A hanging member 4 pivotally connected to the rolling row 528 and erected upward is provided on the left and right lifters 30.
A connecting rod 29 is provided in the slip-fitting hole 40a of 0, and a flexible member 6 is attached to the front and rear sides of the lift pallet 23, which corresponds to the left and right lifters 30.
0.61, the lift pallets 23 are connected horizontally so that they can be hung. Therefore, this palette 2
3 with the car 80 placed on the lift chain 22
When suspended with tension F, pallet 23 and car 80 are supported by tension T^ of flexible member 60, 61 and vertical upward component force of TB, and horizontal component force is applied to hanging member 58.
．． A row 528 pivotally connected to a bracket 27 attached to the rear part of the pallet 23 via a rod 59 abuts against the groove rear wall 7C of the rolling main column 7 and is supported by a horizontal component force P. On the other hand, the tension T^ of the flexible member 60.61 is also applied to the lifter 30.
, TB act, and the vertical weight W is supported by the tension F of the lift chain 22, and the horizontal component P1 is applied to the main support 7 through the upper and lower rollers 34, 35 of the main column 7. is supported by. By driving the lift chain 22 in this state, the lift pallet 23 on which the automobile 80 is mounted is suspended horizontally and is lightly moved up and down while maintaining the balance of each suspension part. This flexible member 6
The locking device of the pallet 23 (see Fig. 9(a)) is suspended and stopped at the rising end of the lifting frame 2 with a tension of 0.61! ! ! When the locking state by 62 is released and the drive unit 14 is lowered, the pallet 23 is gradually lowered and touches the ground (see FIG. 9(b)). When the pallet 23 is grounded, the flexible members 60, 61 are still under tension, making it impossible to open the door of the vehicle 80. From the state in which the pallet 23 is on the ground, the lifter 30 is further lowered along the connecting rod 29, whereby the flexible members 60, 61 are gradually loosened and the j!
When the lifter 30 is lowered to a relaxed height position that does not interfere with the IIW1, it is detected by, for example, a detection means, and the drive unit 14 is stopped, and in this state, the car 80 can be moved in and out. (See Figure 9(C)). In addition, in the case of the lifting process of the pallet 23, the process is performed in the opposite manner to that described above, and as the lifter 30 rises, the flexible members 60, 61
is gradually tightened, and when it is sufficiently tightened (Fig. 9(b)
(Reference) When the pallet 23 starts rising and reaches the rising end, it is detected by a detection means or the like and the drive unit 14 is stopped. As a result, the operating handle 67 of the locking device 62 is operated manually, or by energizing the electromagnetic solenoid by the detection signal at the rising end, the operating handle 67 is actuated to lock the lifter 30 and stop and hold the pallet 23.

In this way, in the suspension means for the pallet 23 of this embodiment, the lifting frame 2 is provided on one side of the vehicle width of the pallet 23 and the pallet 23 is moved up and down, so the installation space D can be reduced to a small space. Since the lifter 30 is movably suspended in conjunction with the connecting rod 29 provided integrally with the pallet 23 via the sliding hole 40a, the ease of getting on and off the vehicle 80 on the pallet 23 is improved. The load on the drive motor 15 at the initial stage of ascent can be reduced, and there is no need to suddenly stop the motor 15 at the same time as the pallet 23 touches the ground during descent.

Next, the operation of the safety device 43 will be explained. For example, when the pallet 23 is raised or lowered, one of the lift chains 22
When the tension F decreases extremely, the weight MW of the pallet 23 part, that is, the tension T A of the flexible member 60.61, instantly decreases.
A downward acceleration αL is applied to the lifter 30 by the downward force of T B and the weight IWL of the lifter 30 section. The acceleration α[ of the lifter 30 is given by W[, where Q is the gravitational acceleration, and the falling acceleration acting on the pallet 23 is q, but the weight W of the pallet 23 parts is the weight IWL of the lifter 30 parts. Since the relationship α[>>q holds true, the lifter 30 falls more rapidly than the pallet 23, that is, the lifter 30 falls relatively along the connecting rod 29 that is erected integrally with the pallet 23. do.

Note that the acceleration αL of the lifter 30 is determined by the flexible member 60.6.
The tension of 1■^, 1'' acts for a short time while TB is acting. Due to this relative acceleration, the lifter 30 descends with respect to the connecting rod 29, and due to the biasing force of the torsion coil spring 55, the roller 51, which pivots on the operating pin 49, falls into the notch surface 298 of the connecting rod 29 and becomes integral with it. The stop lever 45 connected to the
When the lifter 30 further descends, the stop lever 45 comes into contact with a stopper 57 fixed to the surface 7A of the main column 7, and the lifter 3
A fall of 0 is suppressed. On the other hand, as the lifter 30 descends, the pallet 23 descends and the flexible member 60
．． 61 is also tensed, and the tension T A of the same member 60.61 is
It is stopped by TB.

When the pallet 23 is in a stopped state, the relative position between the lifter 30 and the pallet 23 is before the tension F of the lifting chain 22 is reduced, that is, the operating pin 49 with the roller 51 is moved in the direction of the arrow C and the connecting rod is moved. It is restored to the normal hanging state where it is in contact with the outer circumference of No. 29,
A large frictional resistance acts on the contact surface between the stop lever 45 and the stopper 57 due to the weight WL of the lifter 301Ill, and the coiled spring 53 is set to be much smaller than this frictional resistance, so only the coiled spring 53 is compressed. The actuating pin 49 is moved in the direction of arrow C through the regulating hole 49b, and the engagement between the stopper lever 45 and the stopper 57 is maintained to prevent the stopper from falling. As described above, the safety device 143 of this embodiment mainly uses the flexible member 6 that suspends the lift pallet 23 when the tension of the lift chain 22 is abnormally reduced.
An instantaneous relative displacement in the height direction of the lifter 30 with respect to the pallet 23 caused by the difference between the downward acceleration α acting on the lifter 30 due to the tension T^, TB of 0.61 and the gravitational acceleration Q acting on the lift pallet 23. Since the parking bag is made use of, the falling height can be kept to a minimum and the safety and reliability of the Parking Bag@1 can be increased.

(Effects of the Invention) In the device of the present invention, since the lifting means for the lift pallet is moved up and down by providing a lifting frame on one side of the vehicle width of the pallet, the installation space can be reduced to a small space. Since the lifter is movably suspended in conjunction with the connecting rod provided integrally with the lift pallet through the sliding holes, it is easy to get on and off the vehicle on the pallet. , it is possible to reduce the load on the drive motor at the initial stage of ascent, and there is no need to suddenly stop the motor at the same time as the pallet touches the ground during descent. In addition, when there is an abnormality in which the upward force that suspends the lifter decreases, this is caused mainly by the difference between the downward acceleration that acts on the lifter due to the tension of the flexible member that suspends the lift pallet and the gravitational acceleration that acts on the lift pallet. Since it utilizes the instantaneous displacement of the lifter relative to the pallet in the vertical direction, it is possible to minimize the fall and improve the safety and reliability of the parking device.

A front view of the tiered parking device, Figure 2 is a plan view, Figure 3 is a side view, Figure 4 is an enlarged front view of the lifter and safety device, Figure 5 is a plan view, and Figure 6 is a lock. A front view of the device, FIG. 7 is a plan view, FIG. 8 is a side view of the operating handle of the locking device, FIGS. The installation plan of the device, Figure 11 is an explanatory diagram of lifter acceleration, Figure 1
2 to 14 are conventional examples.

1...Two-stage parking device 2...Elevating frame 1...
Main strut 14... Lifting drive unit 28... Roller 29a... Notch surface 40... Hanging member 43... Safety device 45... Stop lever 48... Support lever 51...・Roller 55...Torsion coil spring 60, 61...Flexible member 8...Guide groove 23...Lift pallet 29...Connecting rod 30...Lifter 40a...Sliding hole 44 ...Shaft 47...Operating lever 49...Operating pin 53...Coil spring 57...Stopper

Claims (2)

[Claims] (1) In a two-stage parking device, a lifting frame equipped with a drive unit for lifting and lowering a lift pallet on which a car is mounted is installed on one side of the lift pallet that corresponds to the width of the vehicle, and the lifting frame A pair of lifters are provided that are moved up and down by the drive unit along the guide grooves of the left and right main columns of the body, and rollers that roll in the guide grooves are pivotally mounted on the left and right sides of the main column side of the lift pallet, and a connecting rod that stands upwardly and is suspended in a loose fit manner in a sliding hole of a suspension member provided on the left and right lifters, and side portions of the lift pallet that correspond to the left and right lifters, respectively. at least two times before and after
The points are connected by flexible members so that the lift pallet can be suspended horizontally, and when the lift pallet touches the ground,
In the two-stage parking device, the lifter is configured to be able to descend along the connecting rod and loosen the flexible member. (2) In a two-tier parking device, a lifting frame equipped with a drive unit for lifting and lowering a lift pallet on which a car is mounted is installed on one side of the lift pallet that corresponds to the vehicle width, and the lifting frame A pair of lifters are provided that are moved up and down by the drive unit along guide grooves of the left and right main columns of the body, and rollers that roll in the guide grooves are pivotally mounted on the left and right sides of the main columns of the lift pallet, and a connecting rod that stands upwardly and is suspended in a loose fit manner in a sliding hole of a suspension member provided on the left and right lifters, and side portions of the lift pallet that correspond to the left and right lifters, respectively. at least two times before and after
The lift pallet is connected by a flexible member so that the lift pallet can be suspended horizontally, and the lifter is provided with a stop lever that is installed opposite to the main column via a shaft, and a support lever that is installed opposite to the connection rod. On the other hand, an actuating lever is provided which is made up of a shaft pin having a roller that is elastically applied via a coil spring and comes into contact with the connecting rod, and both levers are torsionally biased toward the main support by the coil spring, and the stop lever of the main support is Stoppers are arranged at predetermined intervals on the opposing surface of the connecting rod, and a cutout surface of a predetermined length is provided on the outer circumferential portion of the connecting rod facing the operating lever, so that an upwardly facing surface for suspending the lifter is provided. When the force decreases, the vertical connection of the lifter to the lift pallet is caused by the difference between the downward acceleration acting on the lifter due to the tension of the flexible member suspending the lift pallet and the gravitational acceleration of the lift pallet. A two-stage parking device equipped with a safety device that operates the stop lever and the operating lever by displacement in the height direction relative to the rod to prevent the lifter from falling and stop the lift pallet.