JPH05248110A - Double-deck parking apparatus - Google Patents

Abstract

PURPOSE:To prevent the structure of a pallet lifting device from becoming complicated because of a method in which the pallet is supported with four supports in order to keep the balance of supporting. CONSTITUTION:A pallet 4 is supported at two points in the front and the rear thereof with four supports 2 through cables 3 that are capable of being bent for changing the direction of extension. The cables 3 provided respectively on the front and the rear are wound round at one point with a cable driving reel 13. The cable driving reel 13 is driven for rotation by a driving means 29.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-stage parking system.

[0002]

2. Description of the Related Art In a two-tiered parking system equipped with a pallet that can be raised and lowered, when installing a support pillar for supporting the pallet, the support base of the support pillar is strengthened or the support pillar is installed to counter the horizontal force due to an earthquake or the like. There was a problem that the verticality at the time of installation had to be accurate and the cost would increase. Therefore, the applicant of the present invention has previously proposed a parking device capable of obtaining a sufficient strength against the horizontal force with a simple structure, as disclosed in Japanese Patent Laid-Open No. 2-27067.

As shown in FIGS. 21 and 22, this is achieved by fixing the pallet b to one of the two columns a (right side in FIG. 22) standing upright on the left and right sides. The pillar a and the pallet b form a rigid joint, and the lower end of the pillar a forms a simple beam-type rigid frame structure that serves as a rotation fulcrum.
As a result, it is possible to avoid the moment at
It is possible to simplify the work and to easily install the support a.

Further, as shown in FIG. 22, even when the center of gravity G A of the automobile A is deviated from the left-right center P of the pallet b to the left and right by a constant eccentric amount e, a left-right unbalance occurs in the pallet b. The posture of the pallet b can be regulated and dealt with by the above-mentioned one-sided fixed state. In this case, the amount of eccentricity e is small, and therefore the load on the column a or the like is relatively light, so that it is possible to sufficiently oppose it.

Further, as shown in FIG. 21, when the eccentric load G in the front-rear direction is applied to the pallet b due to the weight of the pallet b and the weight of the automobile A, the pallet b is unbalanced in the front-rear direction. This is to deal with the above-mentioned one-sided fixed state.

[0006]

However, in the above-mentioned conventional example, there is a problem that the imbalance before and after acting on the pallet can be sufficiently counteracted. That is,
This is because the amount of eccentricity in the front-rear direction tends to be larger than that in the left-right direction, and the load on the support pillars increases, so that it may be difficult to oppose it only in one fixed state as described above. .. In particular, when a pallet is supported by two columns on the left and right, it is common to support the pallet at a position behind the center of gravity of the car, because the door of the car can be opened and closed on the pallet, and so much eccentricity. The amount also increases. Therefore, in this case, a large force in the forward tilt direction is always applied to the pallet.

Such an unbalance between the front and rear can be easily resolved by using four columns and supporting the pallet at the two front and rear positions. Usually, however, in order to raise and lower the pallet at the two front and rear positions, the pallet is moved to the two front and rear positions. An elevating and lowering driving means is required, and the structure becomes complicated, which causes a new problem that the cost is rather high.

Further, when the number of columns is four, there is a problem that the loading and unloading port is narrowed by the front struts, which makes it difficult to enter and leave while turning. Considering this point, 2
Book columns also need to deal with the forward tilting forces that act on the pallet.

By the way, the conventional two-stage parking apparatus has the following inconveniences in raising and lowering pallets. In other words, the pallet is raised only after the vehicle has already been unloaded from the pallet or after the vehicle has been moved onto the pallet.If the raising switch of the lifting means is turned on, safety devices such as the upper limit switch will operate. Then, the pallet automatically stops at the upper limit position. Therefore, it is possible to leave the parking device after turning on the raising switch. On the other hand, lowering the pallet means waiting for the pallet to finish lowering because the car is about to be unloaded from the pallet or is about to be moved to the pallet. Generally, the pallet is moved up and down only by the forward and reverse rotations of the driving means such as a motor, and the speeds of raising and lowering are substantially the same as each other. You must use it and increase the lifting speed itself.

However, a large number of parking devices are installed in a commercial parking lot, and the use of such a large drive means raises the problem of increasing the overall power supply capacity.
On the other hand, in a parking lot for a private house, a single-phase 100V power source is often used, which causes a problem of having to start over from the power source drawing work.

Further, in the conventional parking device of this type, the following problems also occur with respect to the car stop installed on the pallet. In other words, the car stop is fixed to a specific position such as the rear end of the pallet (shown as d in Fig. 21) so that it will not accidentally come off or slip even if the tire is hit by moving the car onto the pallet. ing. For this reason, there is a problem in that the parking lot for private houses cannot be installed at an optimum position, although only a specific model is parked.

The present invention has been made in view of the above points, and a first object of the present invention is to support a pallet at two front and rear positions to eliminate an unbalance between the front and rear of the pallet, while at the two front and rear positions. It is an object of the present invention to provide a two-stage parking device in which the structure of the lifting means is simple despite the lifting and lowering of the pallet.

A second object of the present invention is to provide a two-stage parking apparatus which can cope with a force in a forward tilting direction acting on a pallet with a simple structure even with two columns.

[0014]

In order to achieve the first object, the means for solving the problems of the first aspect of the present invention is to provide a pallet for mounting on an automobile and a beam member provided at two positions in front of and behind the lower face of the pallet. , Four columns that are erected up and down on the left and right sides of the pallet, corresponding to the respective ends of these beam members,
Vertical members are vertically movably guided by one of the left and right of the columns in a state in which the forward and backward and left and right movements are restricted, and vertical members fixed to one end of the beam portion and one end of each of the left and right columns. While being fixed to the upper end,
Each middle part is supported at the upper end of the other strut,
Two rope members with variable bending directions that suspend the pallet at two positions of a beam member, a rope drive vehicle that winds the other end side of these two rope members at one place, and the rope. Drive means for rotating the drive vehicle.

In order to achieve the second object, the solution means of the invention of claim 2 is to install a pallet for mounting on an automobile, a beam member laterally provided at a rear portion of the lower surface of the pallet, and each end of the beam member. Corresponding to each part of the pallet, and two pillars that are erected on the left and right sides of the pallet, and one of these pillars is guided to move up and down in a state in which the movement of the front and rear and left and right is restricted. A vertical member fixed to one end, one end fixed to one of the left and right upper ends, the middle part supported by the upper end of the other strut, the other end engaged with the rear end of the pallet, While suspending the beam member at the position of the beam member, and a bending member whose bending direction is variable to apply a downward force to the rear end side of the pallet, and a rope driving vehicle in which an intermediate part of this string member is wound. It is equipped with drive means for rotationally driving this cord drive vehicle. Characterized in that was.

According to a third aspect of the present invention, in the first or second aspect of the invention, the rope drive wheel is rotated in a direction in which the rope member is pulled and driven by forward rotation when the pallet is raised. The rotary drive shaft of the driving means for driving is provided with reverse rotation resistance means for suppressing the reverse rotation speed when the pallet is lowered.

According to a fourth aspect of the present invention, in the first or second aspect of the present invention, a rod-shaped stopper arranged in the rear left and right direction of a pallet for mounting on an automobile, and the rod-shaped stoppers attached to both left and right rear portions of the pallet. A support member for supporting the stopper at both left and right end portions, and a clamp means for detachably attaching the lower portion of the support member to the side surface portion of the pallet,
A car stop is provided at an upper rear portion or a lower front portion of the supporting member above the clamping means, and has a contact portion that has an abutting portion that comes into contact with an upper side portion of a side portion of the pallet from above or a lower side portion of the side portion from below. It is characterized by

[0018]

According to the first aspect of the invention, the pallet is supported by the four columns on the left and right sides of the pallet at the front and rear sides, so that the force in the forward tilt direction can be dealt with by the left and right columns on the front side. Since the force in the rearward tilt direction can be dealt with by the left and right support columns on the rear side, even if the parking position of the car on the pallet is biased to the front and rear and a relatively large eccentric load on the pallet is applied to the pallet, the pallet is moved back and forth. It can be stably supported in a well-balanced manner.

On the other hand, each of the other end portions of the cord members for suspending the pallet at two front and rear positions is wound around the cord drive vehicle at one position, so that one drive means can drive the pallet at a position in the vicinity thereof. It is possible to pull and drive the two cord members without difficulty. Moreover, by using a cable member whose bending direction is variable, an arrangement route for winding the two cable members on the front and rear sides at one position on the cable driving vehicle is provided.
Even if it is a relatively complicated one in which various bending directions are mixed, each cord member can be smoothly pulled and driven without any trouble.

Further, when suspending the pallet with the cord members, beam members are provided laterally at two positions on the lower surface of the pallet and are suspended at the positions of these beam members. Because it can reinforce the strength of
Due to this suspension, it is possible to deal with lateral bending that may occur in the pallet.

Regarding the above-mentioned front-rear balance, since the vertical member regulates the front-back movement thereof by the support columns, it also contributes to restricting the forward and backward inclination of the pallet through the beam member. There is. The left and right imbalance of the pallet is dealt with by restricting the left and right tilts of the pallet through the beam member, since the vertical member restricts the left and right movements of the vertical member by the columns. Further, horizontal forces in the front-rear direction and the left-right direction are dealt with by forming the rigid frame structure in which the pallet is substantially fixed to one of the left and right columns via the beam member and the vertical member.

According to the second aspect of the present invention, the rear end side of the cord member for suspending the pallet at the rear portion is engaged with the rear end portion of the pallet and a downward force is applied to the rear end portion side. This makes it possible to cope with the force in the forward tilting direction that occurs in the pallet, and to balance the front and rear of the pallet. When the pallet is raised, when the rope driving wheel in which the midway portion of the rope member is wound is driven to rotate by the drive means, when the pallet is raised, the rope member on the side that suspends the pallet is By feeding to the side that engages the end, it is possible to avoid an increase in the downward force applied to the rear end of the pallet. When the pallet is lowered, the downward force can be maintained by sending the engaging-side cord member to the suspension side. Moreover, when the force in the forward tilt direction of the pallet increases or decreases because the parking position of the vehicle moves back and forth, the downward force is also adjusted according to the increase or decrease in the tension of the rope member.

Further, since the above-mentioned cord member whose bending direction is variable is used, one end side of the cord member is laterally bridged between the left and right columns to suspend the pallet, and the intermediate portion is the cord driving member. Even if it is relatively complicated in that it is wound around the vehicle and the other end side is engaged with the rear end of the pallet, the ordinary drive means will interfere with this rope member via the rope drive wheel. It can be driven without pulling.

Further, when the pallet is suspended by the cord member, it is possible to reinforce the strength of the pallet in the horizontal direction at the location where the beam member is provided by suspending at the location of the beam member. Due to this suspension, it is possible to deal with lateral bending that may occur in the pallet.

Regarding the front-rear balance, since the vertical member regulates its front-rear movement by the support columns, it also contributes to restricting the forward and backward inclination of the pallet through the beam member. The left and right imbalance of the pallet is dealt with by restricting the left and right tilts of the pallet through the beam member, since the vertical member restricts the left and right movements of the vertical member by the columns. Further, horizontal forces in the front-rear direction and the left-right direction are dealt with by forming the rigid frame structure in which the pallet is substantially fixed to one of the left and right columns via the beam member and the vertical member.

According to the third aspect of the present invention, when the operation of the driving means is stopped and the reverse rotation of the rotary drive shaft is made to be free when the pallet is lowered, the pallet is caused by its own weight or a load obtained by adding the weight of the automobile thereto. In a state close to a natural fall, it descends at a speed faster than the ascending speed.

At this time, the cord member is pulled from the cord drive wheel to the side that suspends the pallet, and the rotary drive shaft is rotated in the reverse direction via the cord drive wheel. By suppressing the reverse rotation speed of the rotary drive shaft by the reverse rotation resistance means, the descending speed can be suppressed within a required range.

In the invention of claim 4, the lower portion of the support member is
The pallet is attached to an arbitrary position on the side surface of the pallet by the clamp means, and the abutting portion of the supporting member is brought into contact with the upper side portion or the lower side portion of the side portion of the pallet. When it is pushed to, the lower part of the support member and the contact part sandwich the side of the pallet from above and below due to the lever principle, and a large vertical frictional force is generated between the lower part of the support member and the pallet and between the pallet and the contact part. Occurs respectively. These frictional forces can restrain the rearward movement of the support member against the pushing movement.

[0029]

Embodiments of the present invention will be described below with reference to the drawings.

-Embodiment 1-In Embodiment 1 shown in FIGS. 1 to 16, two connecting chains whose bending directions are variable as shown in FIG. 5 are formed by four columns 2 erected on the floor 1. Pallet 4 through 3 (cord member)
Is supported at two places before and after that. In this embodiment, the left and right of FIG. 4 will be described as “front / rear” and the upper / lower of FIG. 4 as “right / left”.

Beam members 5 made of rectangular steel pipes are joined to the pallet 4 at two positions in front and back thereof in the left-right direction. At the right end of each beam member 5, as shown in detail in FIGS. 6 and 7,
A vertical member 6 made of a rectangular steel pipe having substantially the same cross-sectional shape as the beam member 5 is integrally fixed in an L-shape so as to be orthogonal to the beam member 5. A portion of the vertical member 6 fixed to the beam member 5 is reinforced by a reinforcing member 7, and a storage space for a chain wheel 8 around which the connecting chain 3 is wound is formed between the three members.
The chain wheel 8 is rotatably supported by a front-rear supporting shaft attached to front and rear walls of the reinforcing member 7. The top of the vertical member 6 is opened to insert the connecting ring 3. In addition, on the front and rear outer wall surfaces of the upper and lower ends of the vertical member 6, slidable contact members 9 that slidably contact the inner surface of the right column 2 are fixed. This sliding contact member 9 allows the vertical member 6 to move up and down smoothly along the inner surface, and regulates its front-rear and left-right movements. On the other hand, the left end of the beam member 5 is not provided with the vertical member 6 like the right end, but as shown in FIG. 8, the chain wheel 8 around which the linking chain 3 is wound in substantially the same manner as the right end. The accommodation space is formed. The chain wheel 8 is rotatably supported by a support shaft in the front-rear direction attached to the front and rear walls at the left end. The top of the left end is opened to insert the connecting ring 3. Further, on the front and rear outer wall surfaces of the left end portion, a slide contact member 9 is fixedly provided to slidably contact the inner surface of the left column 2 to vertically move the left end portion and to regulate the front and rear and left and right movements thereof. is doing.

Both the left and right columns 2 have pallets 4 on their opening surfaces.
Has a substantially C-shaped cross section toward the side, and the corresponding end of the beam member 5 is received in the internal space thereof so as to be vertically movable. Front and rear columns 2, 2 lined up on each side
As shown in FIG. 3 and FIG. 4, the vertical beam members 10 made of square steel pipes arranged in the front-rear direction are connected between both upper end portions. Each of the vertical beam members 10 forms a rigid frame structure together with the corresponding two columns 2 and 2, and opposes the horizontal force in the front-rear direction. The vertical beam member 10 on the right side communicates with the inner space of each of the joined columns 2 to form an insertion space for the linking chain 3 therein, and the linking chain 3 is exposed to the outside between the columns 2 and 2. Plays the function of avoiding. In addition, the vertical beam member 10 includes both columns 2, 2
Also have a function of preventing them from being attracted to each other by the tension of the connecting chain 3. The right column 2 (see FIG. 6) has a larger horizontal dimension than the left column 2 (see FIG. 8). This enhances the strength in the left-right direction, and secures a passage space for the linking chain 3 between the rear right column 2 and the end of the beam member 5, so that the inner space of the column 2 is connected to the inner space of the linking chain 3. It can be used as a storage space without any problems. In addition, the pillar 2 of this embodiment
Has an inwardly bent reinforcing lip 11 at the opening edge on both sides thereof to further increase the strength in the left-right direction.

As shown in FIG. 1, one end side of the connecting chain 3 is crossed between the left and right support columns 2 and 2 on the front side to suspend the pallet 4 at its front part, and another one side. One end side of the pallet 4 is laid horizontally between the left and right rear columns 2 and 2 to suspend the pallet 4 at the rear portion. That is, one end of the front connecting chain 3 is inside the pillar 2 on the front left side, and the locking metal fitting 1 is attached to the top of the pillar 2.
It is fixed by 2, and the inner space hangs down from there to the left end of the beam member 5 and turns right by the chain wheel 8 in the left end, and passes upward through the inner space of the beam member 5 by the chain wheel 8 on the right end side. , Is guided to the inner space of the right column 2 through the inner space of the vertical member 6. After being guided to this internal space, the linking chain 3 turns rearward by a chain wheel 8 rotatably supported by a horizontal shaft in its upper position, and passes through the internal space of the vertical beam member 10 to the rear part. Reach the inner space of the pillar 2. In this internal space, the drive chain wheel 13 arranged in the upper part of the space is turned upward by a chain wheel 8 rotatably supported by a horizontal shaft.
It is wound around (cord-driving vehicle).

Another rear connecting chain 3 has one end fixed to the top of the inside of the rear left supporting column 2 by a locking metal fitting 12, from which the internal space extends to the left end of the beam member 5. It hangs down and turns to the right by the chain wheel 8 in the left end, passes through the internal space of the beam member 5 and turns upward by the chain wheel 8 on the right end side, passes through the internal space of the vertical member 6 and After being guided to the internal space, it is wound around the drive chain wheel 13. The drive chain wheel 13 has two rows of teeth, and the two connecting chains 3 are wound around each of the rows of teeth. The other end of each connecting chain 3 is wound around the drive chain 13 and then hung down. As shown in FIGS. 2, 3 and 6, each other end has an inner space of the pillar 2. The upper part is locked by a locking metal fitting 14 attached to the inner wall surface. Drive chain 13
When the connecting chain 3 is pulled and driven, the connecting chain 3 located between the drive chain wheel 13 and the locking fitting 14 droops greatly, but this hanging part does not interfere with the vertical member 6 and the right side It is accommodated in the internal space of the rear right support 2 without any hindrance.

The pallet 4 is formed by press-forming a steel plate, and as shown in FIG. 2 to FIG. The tire T is guided and the strength of the pallet 4 in the front-rear direction is improved. Side ridges 16 are formed on both left and right sides of the pallet 4 to similarly guide the tire T and improve its strength. The front part of the pallet 4 is inclined downward while widening in the left-right direction toward the front, so that the pallet 4 can be easily put in and out while turning the car A, and between the pallet 4 and the floor surface 1. The car A can be moved smoothly.

A car stop 17 is installed at the rear end of the pallet 4. As shown in FIGS. 9 to 10, this car stop 17 includes a stopper 18 (bar-shaped stopper) made of a round steel pipe which is arranged in the left-right direction so as to cross the pallet 4 other than the central raised portion 15, and the stopper 18 A pair of left and right support plates 19 and 19 which are attached and fixed to both end portions, and are attached to the rear portions of the left and right sides of the pallet 4 in a rearward upward posture.
(Supporting member). Lower end 1 of each support plate 19
9a, a backing plate 22 that is applied to the back side of the lower side surface 4a of the pallet 4, and the lower side surface 4a of the pallet 4 is sandwiched between the backing plate 22 and the lower end 19a of the support plate 19 to tighten the three members. There are two sets of bolts 23 and nuts 24 used for. These lower ends 19a,
The backing plate 22, the bolt 23 and the nut 24 are
Clamping means 25 for detachably attaching 9 to pallet 4 is constructed. Further, an abutting portion 26 having a circular cross section that abuts the upper side portion of the side portion of the pallet 4 from above is provided in an inward projecting manner at the upper and lower intermediate portions of the support plate 19. Patch 2
In a portion of the pallet 4 which is in contact with the back side surface of the pallet 4, a notch portion 27 having a depth dimension slightly smaller than the thickness dimension of the lower side surface 4a of the pallet 4.
By this, the effect of the tightening is improved, and when the support plate 19 is mounted on the pallet 4, the vertical positioning and the rearward upward mounting posture can be easily secured. .. The upper and lower positions of the clamp means 25 and the contact portion 26 may be reversed.

A motor unit 28 for rotationally driving the drive chain 13 is provided on the upper outer front wall of the right column 2.
Are arranged. This motor unit 28 is shown in FIG.
As shown in FIG. 3, a motor 29 (driving means) having a deceleration mechanism inside and an electromagnetic brake 31 connected to a motor shaft 30 (rotational driving shaft) thereof are provided. At one end of the motor shaft 30, the drive chain wheel 13 for simultaneously pulling and driving the two linking chains 3 by its forward rotation when the pallet 4 is raised is rotatably attached, and at the other end, the pallet 4 is mounted. A fan 32 (reverse rotation resistance means) for restraining the reverse rotation speed of the motor shaft 30 when rotating the motor shaft 30 is attached integrally with the rotation.

The control system of the motor 29 and the electromagnetic brake 31 will be described. 11 and 12, 3
Reference numerals 3 to 35 denote respective electromagnetic coils of the respective electromagnetic contactors, and electric power is supplied to the motor 29 by exciting the electromagnetic coil 33 and turning on the normally open contact 33a1. The coil 33 is excited by the pushing operation of the push button switch UP for raising, and is self-held by turning on the normally open contact 33a2. In the coil 33, when the upper limit stop limit switch UL is turned off and when the pallet 4 is lowered, the lowering push button switch DN is pushed to excite the electromagnetic coil 35, and the normally closed contact point is closed. 35
When b is turned off, it is demagnetized.

Power is supplied to open the electromagnetic brake 31 when the pallet 4 is moved up and down.
Is excited to turn on the normally open contact 34a. When the pallet 4 is raised, the normally open contact 33a3 is turned on by exciting the electromagnetic coil 33, and when the pallet 4 is lowered, the normally open contact is generated by exciting the electromagnetic coil 35. 35
It is excited when a2 turns on. The electromagnetic coil 35 is excited by the pressing operation of the lowering push button switch DN, and is self-held by turning on the normally open contact 35a1. The coil 35 is demagnetized when the lower limit stop limit switch DL is turned off and when the electromagnetic coil 33 is excited to turn off the normally closed contact 33b. When the stop push button switch STP is pushed, each electromagnetic coil 33
All the items up to 35 are demagnetized, the power supply to the motor 29 and the electromagnetic brake 31 is stopped, and the lifting operation of the pallet 4 is stopped by the braking operation of the electromagnetic brake 31.

The operation of raising and lowering the pallet 4 in the two-stage parking apparatus constructed as described above will be described. First, when the pallet 4 is raised, when the push button switch UP for pushing is pushed, the electromagnetic coil 33 is excited and the normally open contact 33a2 is turned on and self-held. At the same time, the normally open contact 33a3 is turned on to excite the electromagnetic coil 34, the normally open contact 34a is turned on, and the electromagnetic brake 31 is opened. At the same time, the normally-open contact 33a1 is also turned on, the motor 29 is operated, the drive chain wheel 13 is rotationally driven, the connecting chain 3 is pulled, and the pallet 4 rises. When the pallet 4 reaches the upper limit, the ascending / descending limit switch operates to turn off the normally closed contact UL, demagnetize the coil 33 to turn off the normally closed contact 33a1, and stop the power supply to the motor 29. The coil 34 is also demagnetized, the normally closed contact 34a is turned off, the brake 31 is activated, and the pallet 4 stops at the upper limit position.

On the contrary, when lowering the pallet 4, the lower push button switch DN is pushed. Then the electromagnetic coil 3
5, the normally open contact 35a2 is turned on, and the electromagnetic coil 3
4 is excited, the normally open contact 34a is turned on, and the brake 31 is opened. At this time, since the electromagnetic coil 33 is not excited, the motor 29 is not supplied with power, and the pallet 4 descends at a speed faster than the ascending speed in a state close to a natural drop due to its own weight and the weight of the vehicle A. With this descent, the motor shaft 30 is rotated in the reverse direction at a speed faster than that in the normal rotation through the drive chain wheel 13. However, the integrally rotated fan 31 receives air resistance to suppress the reverse rotation speed. The descent speed can be suppressed within a safe range.

The ascending / descending speed of the pallet 4 will be described with reference to FIG. When the rotation speed of the motor shaft 30 when raising the pallet 4 is n1, the required forward rotation torque is T1.
Is. This level of energy consumption T1 × n1 is not a problem because this kind of parking device is operated for a few minutes a day in total. When loading a rated weight automobile A onto the pallet 4 and lowering it, the mechanical transmission loss of the connecting chain 3 and chain wheel 8 is subtracted, and if the reverse torque of T3 is applied to the motor shaft 30, the pallet will be driven at the speed of n3. 4 descends. Pallet 4
When the vehicle A is not installed in the vehicle and only the pallet 4 is lowered (when the vehicle A is not parked in the lower stage, the pallet 4 is usually left unloaded, and actually only the pallet 4 is lowered. But that's not the case)
It can be operated at the descending speed of n2 with the reverse torque of T2. Even if the car A, which is lighter than the rated weight, is installed, the descending speed is n2
It is between 0 and n3, and can be lowered safely without power supply to the motor 27 in a shorter time than when rising at the speed n1, and the waiting time at the time of lowering can be shortened. Moreover, the reversing resistance means of the present embodiment has an extremely simple structure in which the fan 31 is attached to the motor shaft 30 so as to rotate integrally therewith, and a cheap and convenient parking device can be provided.

By the way, when the pallet 4 is moving up and down or at the upper limit position, as shown in FIG.
Is eccentric from the center P of the pallet 4 to the left and right by a certain amount e, a moment Me that tries to rotate in the left-right direction acts on the pallet 4, and an unbalance between the left and right occurs. This is dealt with by the vertical member 6 and the right column 2 that restricts the lateral movement of the vertical member 6. The moment Me has a relatively small eccentricity Me and a small force applied to the vertical member 6.

When a relatively large eccentric load G is generated on the pallet 4 because the stopping position of the automobile A is biased to the front and rear on the pallet 4, the pallet 4 has four front and rear halves. This can be dealt with by being stably supported by the supporting column 2 through the two front and rear connecting chains 3.

On the other hand, with respect to the horizontal force in the left-right direction due to an earthquake or the like, the pallet 4 is practically fixed to the front and rear columns 2 on the right side, and the columns 2 and the pallet 4 are rigidly connected. The same effect can be obtained, and it can be regarded as a simple beam type rigid frame structure in which the left end of the pallet 4 is a movable fulcrum and the lower end of the right strut 2 is a rotation fulcrum. Even if a load is applied, only a vertical load and a horizontal load in the left-right direction act on the foundation of these columns 2, and no moment acts.
Further, only the vertical load acts on the left column 2, and neither the moment nor the horizontal load in the horizontal direction acts. Therefore,
The foundation work and the installation work of these columns 2 can be simplified as much as the moment does not act.
Incidentally, the horizontal force in the front-rear direction is dealt with by constructing a rigid frame structure on each of the left and right sides by the two front and rear columns 2 and the vertical beam member 10 therebetween.

The linking chain 3 of this embodiment is housed in the inner spaces of the column 2, the beam member 5, and the vertical beam member 10 and is not exposed to the outside. It also serves as a protection for and prevents the risk of contact with the connecting ring 3. The connecting chain 3 used in this example is
The bending direction can be changed back and forth, left and right, and up and down, and it is easy to adapt to the above-mentioned relatively complicated arrangement route guided by a plurality of chain wheels 8, and the two front and rear connecting chains 3 can be easily guided to one place. There is an advantage that they can be collected and that a reliable operation can be performed by the reliable engagement with the drive chain wheel 13.

Next, the operation of the car stop 17 will be described with reference to FIG. When the tire T of the automobile A hits the stopper 18, a pushing force F obliquely downward and rearward acts on the stopper 18, and by the lever principle, the clamp plate 25 clamps the support plate 19 attached to the lower side surface 4a of the pallet 4. A reaction force Rax in the x direction (front-rear direction) and a reaction force Ray in the y direction (vertical direction) are generated at the portion Sa.
A reaction force Rbx in the x direction and a reaction force Rby in the y direction are generated at the contact portion Sb where the contact portion 26 contacts the upper side of the pallet 4. The reaction forces Rax and Rbx in the x direction are forces that move the car stop 17 in the front-rear direction.
y and Rby are forces that press the parts Sa and Sb against the pallet 4. And at each part Sa, Sb, Ray / Rax,
The ratio of Rby / Rbx is large, and between the clamp portion Sa and the pallet 4 and between the contact portion Sb and the pallet 4,
A large friction force can be obtained respectively. With this, it is not necessary to previously provide a mounting hole or the like on the pallet 4 side, and the support plate 19 can be mounted by the clamp means 25 in an inclined posture such that the contact portion 26 contacts the pallet 4.
The car stop 17 can be securely installed on the pallet 4 so that it will not be accidentally slipped off the pallet 4 even if the tire T hits it, so that only a specific vehicle type should be parked like a parking lot for a private house. In this case, the car stop 17 can be installed at the optimum front-rear position according to the length of the vehicle type. By installing such a car stop 17 at an optimum position, the center of gravity of the automobile A is adjusted to the pallet 4
It is possible to prevent the pallet 4 from being largely biased in the front-rear direction, which is also advantageous in balancing the front-rear direction of the pallet 4.

14 to 16 show a first modification of the column 2.
3 to 3, respectively. In the first modification, as shown in FIG. 14, the end portion of the beam member 5a is guided by the outer surface of the column 2a. The pillar 2a is made of a rectangular steel pipe, and the end of the beam member 5a is formed in a C-shaped horizontal cross section, and the sliding contact member 9a slidably contacting the outer peripheral surface of the pillar 2a is fixed to the inner periphery of the pillar 5a. There is. According to this modification, although the pillar 2a has a cross-sectional shape that is difficult to deform, the outer surface of the pillar 2a is rubbed and the exterior coating film is easily peeled off and the appearance is deteriorated, and the connecting chain is housed inside the pillar 2a. It is difficult and easy to expose. In the modification 2 shown in FIG. 15, the support 2b made of C-shaped steel is oriented laterally with respect to the pallet 4b to increase the rigidity in the left-right direction, and the sliding contact material 9b is provided on the inner surface of the support 2b as in the present embodiment. Although fixed to the beam member 5b so as to be in sliding contact with the beam member 5b, the connecting chain 3b is inserted into the beam member 5b.
Is difficult to insert into the support column 2b, and the linking chain 3b is also likely to be exposed. Modification 3 shown in FIG.
Then, the pillar 2c made of C-shaped steel is attached to the pallet 4 as in the present embodiment.
The strut 2c is fixed to the beam member 5c so that the slidable contact member 9c is slidably contacted with the inner surface of the strut 2c.
Is weak in the left-right direction, but similar to the present embodiment, the connecting chain 3
c can be housed inside the beam member 5c and the column 2c.

Example 2 In Example 2 shown in FIG. 17 to FIG. 20, one connecting chain 43 is formed by two right and left columns 42 standing on the floor 41.
The pallet 44 is supported at the beam member 45 laterally provided at the rear portion of the lower surface of the pallet 44 via the (cord member) (the same as the linking chain 3 of the first embodiment shown in FIG. 5). In this way, the center of gravity of the pallet 44 is set to the position forward of the support column 42, and the center of gravity of the automobile A is positioned in front of the support column 42. However, in order to counter the force in the forward tilt direction generated by this. The other end of the connecting chain 43 is wound around the rear end of the pallet 44 so that downward force is always applied to the rear of the pallet 44.

A beam member 45 made of a rectangular steel pipe is joined in the left-right direction to a portion of the pallet 44 near the rear of the lower surface. At the right end of the beam member 45, a vertical member 46 made of a rectangular steel pipe having substantially the same cross-sectional shape as the beam member 45 is integrally fixed in an L shape so as to be orthogonal to the beam member 45. An accommodation space for a chain wheel 47 around which the connecting chain 43 is wound is formed in a fixed portion of the vertical member 46 to which the beam member 45 is fixed. The chain wheel 47 is rotatably supported by a front-rear supporting shaft attached to front and rear walls of the fixed portion. Vertical member 4
The top of 6 is opened to insert the connecting chain 43. Further, sliding contact members 48 which slidably contact the inner surface of the right column 42 are fixedly provided on the front and rear outer wall surfaces of the upper and lower ends of the vertical member 46. The sliding contact member 48 smoothly moves the vertical member 46 up and down along the inner surface of the support column 42, and also restricts the forward and backward and left and right movements.

On the other hand, except the vertical member 46 such as the right end portion is not provided at the left end portion of the beam member 45, the accommodating space of the chain wheel 47 around which the connecting chain 43 is wound is similar to the right end portion. Are formed. The chain wheel 47 is rotatably supported by a support shaft in the front-rear direction attached to the front-rear wall at the left end. The top of the left end is opened to insert the connecting ring 43. Also, on the front and rear outer wall surfaces of this left end part,
A sliding contact member 48 is fixedly provided to slidably contact the inner surface of the left column 42 to vertically move the left end portion and to restrict the front-back and left-right movements.

The column 42 has a leg portion 49 in the front-rear direction at the lower end thereof, and as shown in FIG. 18, has an inverted T shape as a whole. The left and right struts 42 both have a C-shaped cross section with their opening faces toward the pallet 44 side, and receive the corresponding ends of the beam members 45 in their internal spaces so that they can be moved up and down.

One end of the connecting chain 43 has two support columns 4
The pallet 44 is installed between the beam member 4 and the pallet 44.
Suspended at 5 points. One end of the connecting chain 43 is fixed to the top of the column 42 on the left side by a locking metal fitting 50, the internal space hangs down from there to the left end of the beam member 45, and the chain wheel 47 in the left end moves to the right. To the upper end of the chain member 47 on the right end side through the internal space of the beam member 45, and is guided to the internal space of the right support column 42 through the internal space of the vertical member 46. After being guided into this internal space, the connecting chain 43 is provided with the drive chain wheel 5 arranged above it.
It is wound around 1 (cord-driving vehicle).

The other end of the connecting chain 43 is connected to the drive chain wheel 5 described above.
1 hangs down from the rear end of the right leg 42 by a chain wheel 47 rotatably supported by a left and right support shaft in the lower end of the right column 42, and passes through a space in the rear part of the right leg 49 to a halfway position.
It goes out through an opening 49a provided in the side wall of the leg 49 and is guided to the rear end of the leg 49. A chain wheel 47, which is rotatably supported by a support shaft in the left-right direction, is disposed on the outer wall surface of the rear end portion, and the linking chain 43 rolls upward by the chain wheel 47 to move the rear end of the pallet 44. It has reached the right side of the section. Chain wheels 47, which are rotatably supported by support shafts in the front-rear direction, are arranged on both left and right sides of the rear end portion. The connecting chain 43 turns to the left by the right side chain wheel 47, and turns downward by the left side chain wheel 47.
The other end is locked to the rear end of 9 by a locking metal fitting 52.

The pallet 44 is formed by press-molding a steel plate and has a central raised portion 53 and side raised portions 54 which are substantially the same as those in the first embodiment. At the rear end of the pallet 44, a car stop 55 having the same structure as that of the first embodiment is installed.

On the rear wall of the upper end portion of the right support 42, a motor unit 56 for rotating the drive chain wheel 51 is provided. The motor unit 56 includes a motor 57 (driving means) having a reduction mechanism inside and a motor shaft 5 thereof.
8 (rotational drive shaft) and an electromagnetic brake 59. A drive chain wheel 51 for pulling and driving the connecting chain 43 by the forward rotation to raise the pallet 44 is attached to one end of the motor shaft 58 so as to rotate integrally, and the other end is a motor shaft for lowering the pallet 44 when the pallet 44 is lowered. A fan 60 (reverse rotation resistance means) for suppressing the reverse rotation speed of 58 is mounted integrally with the rotation. These motor 57 and electromagnetic brake 5
The control system of No. 9 is the same as that of the first embodiment. When the pallet 44 is raised, the electromagnetic brake 59 is opened and power supply to the motor 57 is started, and when the pallet 44 is lowered, the motor 57 is supplied. The power supply is stopped and the electromagnetic brake 59 is opened.

When raising the pallet 44, the motor 57
Rotates the motor shaft 58 in the forward direction to rotationally drive the drive chain wheel 51, draws the linking chain 43 on the side that suspends the pallet 44, and applies a downward force to the rear end of the pallet 44. Side by side. When the pallet 44 is lowered, the weight of the pallet 44 or a load obtained by adding the weight of the vehicle A to the pallet 44 is used to lower the pallet 44 at a speed faster than the ascending speed obtained by the operation of the motor 57. You can During this descent, the motor shaft 58
Is sent from the drive chain wheel 51 to the side that suspends the pallet 44, and the link chain chain 43 on the side that applies a moment in the backward tilt direction to the pallet 44 is the drive chain wheel 51.
It is rotated in the reverse direction. At this time, the rotation speed is suppressed by the air resistance of the fan 60, so that the descending speed can be obtained faster than the ascending speed and within a safe range.

As shown in FIG. 18, the pallet 44 is supported behind the pallet 44 and the center of gravity G of the automobile A. That is, the pallet 44 is suspended at the rear portion thereof by the tension T of the connecting chain 43 located between the locking metal fitting 50 of the left support 2 and the drive chain wheel 51. Therefore, due to the center of gravity G, a large forward tilting force is always applied to the pallet 44. On the other hand, in the present embodiment, the connecting chain 43 located between the drive chain wheel 51 and the locking metal fitting 52 of the left leg portion 49 is wound around the rear end side of the pallet 44, and the connecting chain 43 of this portion is wound. By constantly applying a downward force to the rear end side of the pallet 44 by the tension t of
The pallet 44 is prevented from tilting forward to balance the front and rear.

On the other hand, as shown in FIG. 19, when the center of gravity GA of the automobile A is eccentric to the left and right from the left and right center P of the pallet 4, the vertical member 46 and its left and right movements are restricted as in the first embodiment. This is dealt with by the right-hand column 42. Further, as in the first embodiment, the horizontal force due to an earthquake or the like is also dealt with by forming the simple beam type rigid frame structure in which the pallet 44 is substantially fixed to the right column 42 in a one-sided state.

The present invention can be constructed in various modes in addition to the embodiments described above. For example, for the cord member,
It is possible to use a conveyor chain whose bending direction is variable. Further, as the reverse rotation resistance means, a centrifugal brake, a brake device combining a hydraulic pump and a throttle, a device using a powder clutch, or the like can be used. Further, with respect to the car stop, in the above embodiment, this is applied to the two-stage parking device, but it is also possible to apply it to various parking devices such as vertical circulation type, elevator type, horizontal circulation type, and multi-layer circulation type. .. The arrangement path of the cord members is not limited to the one shown in each of the above embodiments, and for example, the arrangement position of the driving means, the fixing position of the end portion of the cord member, the suspension of the pallet by the cord member. Of course, it can be freely designed depending on the holding position, the number and shape of the columns for supporting the pallet, the properties of the cord member used, the guide means of the cord member, and the like.

[0061]

As described above, according to the first aspect of the invention, the four pillars can stably support the pallet in a well-balanced front-rear direction, while providing a cord member whose bending direction is variable. Using each rope member that suspends the pallet at the front and rear two places, it was wound around the rope drive vehicle at one place,
With one driving means, each cord member can be smoothly driven even in the vicinity thereof, and can be smoothly towed even in a bent arrangement route, so that the pallet can be raised and lowered while maintaining the front-rear balance. It is possible to provide a two-stage parking device that can be carried out and has a simple structure of the pallet lifting means.

According to the second aspect of the present invention, since the width of the entrance / exit opening is ensured by using two columns, it is possible to enter and exit the vehicle while turning, which is convenient and the rope member for suspending the pallet. Although it is a general pallet elevating means that drives the tow through the rope drive vehicle by the drive means,
The tension of the rope member that suspends the pallet is a simple structure in which the rope member whose bending direction is variable is used and the other end side of the rope member is extended to engage the rear end portion side of the pallet. The downward force applied to the rear end side of the pallet can be adjusted by using the increase / decrease of the pallet, so that the pallet front / rear balance can be maintained even when the eccentric load position is changed back and forth and when the pallet is raised / lowered. A two-stage parking device can be provided.

According to the third aspect of the invention, in addition to the effect of the first or second aspect of the invention, the pallet is lowered by utilizing the weight of the pallet or the load obtained by adding the weight of the automobile to the driving means. Without upsizing
With a simple structure, the pallet can be lowered at a processing speed higher than the ascending speed obtained by the rotation of the rotary drive shaft of the drive means in the forward direction, and the reverse rotation resistance means is attached to the rotary drive shaft. Since the lowering speed can be suppressed within a safe range, it is possible to provide a low-priced two-stage parking apparatus which has a short waiting time for lowering the pallet, can obtain a safe lowering speed.

According to the invention of claim 4, in addition to the effect of the invention of claim 1 or 2, in addition to attaching the lower part of the supporting member to the side surface of the pallet, the car stop can be firmly and easily placed at any front and rear position. Since it can be installed on the pallet, by setting the parking position of the car on the pallet to any position according to the size of the car model, etc. A two-stage parking device that can contribute to prevention can be provided.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a two-stage parking device according to a first embodiment.

FIG. 2 is a rear view of the two-stage parking apparatus according to the first embodiment.

FIG. 3 is a right side view of the two-stage parking apparatus according to the first embodiment.

FIG. 4 is a plan view of the two-stage parking apparatus according to the first embodiment.

FIG. 5 is a partial view of a cord member used in the two-stage parking apparatus of the first embodiment.

6 is a sectional view taken along line VI-VI of FIG.

7 is a sectional view taken along line VII-VII of FIG.

8 is a sectional view taken along line VIII-VIII of FIG.

FIG. 9 is a right side view of a car stop of the two-stage parking apparatus of the first embodiment and a view for explaining the operation.

FIG. 10 is a rear view of the main part of the car stop of the two-stage parking apparatus according to the first embodiment.

FIG. 11 is a circuit diagram of driving means used in the two-stage parking apparatus of the first embodiment.

FIG. 12 is a control circuit diagram of drive means used in the two-stage parking apparatus of the first embodiment.

FIG. 13 is an explanatory diagram of a pallet lifting speed in the two-stage parking apparatus of the first embodiment.

FIG. 14 is a cross-sectional plan view of a modified example 1 of the pillar used in the two-stage parking apparatus of the first embodiment.

FIG. 15 is a cross-sectional plan view of a modified example 2 of the pillar used in the two-stage parking apparatus of the first embodiment.

FIG. 16 is a cross-sectional plan view of a modified example 3 of the pillar used in the two-stage parking apparatus of the first embodiment.

FIG. 17 is a schematic perspective view of a two-stage parking device according to a second embodiment.

FIG. 18 is a right side view of the two-stage parking apparatus according to the second embodiment.

FIG. 19 is a rear view of the two-stage parking apparatus according to the second embodiment.

FIG. 20 is a plan view of the two-stage parking apparatus according to the second embodiment.

FIG. 21 is a right side view of a conventional two-stage parking device.

FIG. 22 is a front view of a conventional two-stage parking device.

[Explanation of symbols]

 2,2a, 2b, 2c, 42 Strut 3,3b, 3c, 43 Rope member 4,4b, 4c, 44 Pallet 5,5a, 5b, 5c, 45 Beam member 6,46 Vertical member 13,51 Rope drive Vehicle 17,55 Car stop 18 Bar-shaped stopper 19 Supporting member 25 Clamping means 26 Abutting part 29,57 Driving means 30,58 Rotation drive shaft 32,60 Reverse rotation resistance means

Claims (4)

[Claims] 1. A pallet for mounting on a vehicle, beam members laterally provided at two positions on the lower surface of the pallet, and erected on both left and right sides of the pallet so as to correspond to respective ends of the beam members. And four vertical columns that are vertically movably guided with front and rear and left and right movements restricted by one of the left and right columns of the columns, and fixed vertically to one end of the beam section. One end side is fixed to the upper ends of the right and left columns, respectively, while the middle part of each is supported by the upper ends of the other columns, and two bending directions that suspend the pallet at two positions of the beam member are variable. A two-stage structure comprising a cord member, a cord driving wheel that winds the other ends of these two cord members at one location, and a drive unit that rotationally drives the cord driving vehicle. Parking device. 2. A pallet for mounting on a vehicle, a beam member laterally provided at a rear portion of a lower surface of the pallet, and erected on both left and right sides of the pallet corresponding to respective ends of the beam member. Two columns, a vertical member that is vertically movably guided by one of these columns so that the movement in the front-rear and left-right directions is restricted, and is fixed to one end of the beam portion. Fixed to the other part, the middle part is supported at the upper end part of the other strut, the other end side is engaged with the rear end part of the pallet, the pallet is suspended at the beam member, and the rear end part side of the pallet is A variable-direction flexure member that applies downward force to the cord, a cord drive vehicle in which an intermediate portion of the cord member is wound, and a drive unit that rotationally drives the cord drive vehicle. A characteristic two-stage parking system. 3. A rotative drive shaft of a drive means for rotatably driving the rope drive vehicle in a direction in which the rope member is pulled and driven by forward rotation when the pallet is raised, and its reverse rotation when the pallet is lowered. The two-stage parking apparatus according to claim 1 or 2, further comprising a reverse rotation resistance means for suppressing the speed of the vehicle. 4. A bar-shaped stopper arranged in the left and right direction of the rear part of a pallet for mounting on an automobile, a support member attached to the left and right rear parts of the pallet and supporting the bar-shaped stopper at both left and right ends, and a lower part of the support member. Clamping means for removably attaching to the side surface of the pallet, and clamp means of the supporting member, which are provided at an upper rear portion or a lower front portion with respect to the mounting position of the pallet, and from the upper side or the lower side portion of the side upper portion of the pallet. The two-stage parking apparatus according to claim 1 or 2, further comprising a car stop having an abutment portion that abuts against the vehicle from below.