JPH03212573A - Pallet transfer device in sky parking facility - Google Patents

Abstract

PURPOSE:To simplify and miniaturize the structure of a pallet transfer device and take pallets in and out at high speed by using first and second drive mechanisms to put in turning movements friction cars both of which are installed on a moving stand and sandwich between them a guide plate located on the lower surface of a pallet, and moving the pallet onto a lifter, and holding the pallet thereon. CONSTITUTION:When a lifter 41 rises along a structure 31 and stops at a desired garage 22 a second driving means 22 is actuated and a moving stand 54 is moved in the outward and sideward direction and a pair of friction cars 57, 57' are protrusively held in an advanced end position. The inner end portion of a guide rail 53 located on the lower surface of a pallet 37 is sandwiched between the friction cars 57, 57' and the friction cars 57, 57' retreat while being driven by respective first and second driving mechanisms 64, 73 and rotated. The guide plate 59 of the pallet 37 is fed in the inward and sideward direction by frictional forces generated by rotation of the friction cars 57, 57' so that the pallet 37 is moved onto the lifter 41 and held thereon. Cars are thereby loaded on and unloaded from the pallet at high speed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a pallet transfer device in a multilevel parking system that can accommodate a large number of cars in multiple stages within a limited site.

[Conventional technology]

In recent years, with the increase in the number of cars, it is necessary to secure parking lots in areas with particularly high traffic volume, such as urban areas, and for this reason, multi-story parking systems that can accommodate a large number of cars in a limited installation space have become popular. 0 The applicant has filed a patent application for patent application 1986-66.
No. 654 proposed a multi-level parking system, and this was adopted as No. 10.
This is shown in FIGS. 17 to 17.

In FIGS. 10 to 17, (1) and (1') are multi-stage storage racks arranged opposite each other, each of which can accommodate a pallet (2) on which an automobile (A) is placed. In the storage area of the pallet (2) of the storage rack (1) (1°), there are rails (3) (3)... along the width direction (left and right direction in Figure 10) on the front and back sides. It is arranged. Stopper members (4) (4) are arranged and fixed at predetermined positions inside each of the rails (3), (3), and so on.

The position along the rail (3) (3) of the above pallet (2),
That is, on both ends in the width direction, there are casters (2a) (2a) for moving the pallet (2) in the width direction.
・is provided. Furthermore, hook members (2b) are attached at two locations on each side of the lower surface of the pallet (2) in the width direction.
(2b) is installed.

(5) is a lifting device installed in one of the storage racks (1) (1''), and is a drive mechanism (6).
) has an elevator platform (7) that goes up and down via the platform. The lifting platform (7) has two types of guide rollers (8) (9), large and small.
)(8) and (9), the side surface of the storage rack (1) can be raised and lowered while always maintaining a horizontal state.

(10) is a transfer device disposed on the lifting platform (7) and transferring the pallet (2) between the storage rack (1) and the lifting platform (7). This transfer device (10) is composed of a multi-stage telescoping arm (11) and a retaining device for the pallet (2), and the telescoping arm (11) is connected to the front side of the lifting platform (7) and There are lifting platforms (7
) is installed in the width direction. The above telescoping arm (1
1) is the first to third arms (12) (13) (1
4), and the first arm (12) is fixed to the lifting platform (7). Chains (15) (15) are stretched over the first arm (12) in the longitudinal direction, and chain racks (16) (16) are fixedly attached to both ends of the upper surface. The second arm (13) is the first arm (12)
It is movably installed on the top with the same longitudinal direction.

A chain (17) is provided in the longitudinal direction of this second arm (13).
) is stretched, and four chain racks (
18) (18)... is fixedly installed, and this chain rack (18) (18)... is attached to the first arm (1
2) meshes with the upper side of the chain (15) (15). Therefore, as shown in FIG. 15(a), the second arm (13) has a chain (15) circulating within the first arm (12) and a chain rack (18) (1
8) moves in a predetermined direction by meshing with. Third arm (
14) is movably installed over the second arm (13) so as to match the longitudinal direction. This third arm (1
4) Chain racks (19) (19) similar to those described above are fixedly installed at both ends of the lower surface in the longitudinal direction, and these chain racks (19) (19) are attached to the second arm (13).
It meshes with the upper side of the chain (17) disposed on. Therefore, as shown in FIG. 15(b), the third arm (14) moves as the second arm (13) moves.
The chain (17) on the second arm (13) side, which circulates by meshing with the chain rack (16) of 2), and the chain rack (19) of the third arm (14),
It moves relative to the second arm (13) at the same speed as the moving speed of the second arm (13) relative to the first arm (12). Further, the reference numeral (20) shown in FIG. 15(a) indicates the third arm (1) when the telescoping arm (11) is extended.
This support rail (20) is arranged in correspondence with the telescoping arm (11) at the pallet storage area of each stage of the storage rack (1). A wheel (21) is rotatably attached to the tip of the third arm (14) with this support rail (20).
This is to support the transfer of employees.

Furthermore, the pallet (2) is placed at two locations slightly toward the center in the longitudinal direction on the outside-side surface of the third arm (14).
A locking device (22) (22) is provided.

As shown in FIGS. 16 and 17, the retaining bag f (22) has a base plate (23) fixed to the outer wall of the third arm (14) and a base plate (23) parallel to each other. A pair of frame plates (24) (24) vertically installed on the frame plate (24) (24) and a locking plate (25) held on the frame plate (24) (24)
and a linear motion to one rotation motion conversion mechanism (26) disposed on the locking plate (25).

The locking plate (25) has a locking claw (25a) projecting in the diametrical direction and a boss portion (25b) (25c) projecting in the axial direction, as shown in FIGS. 16 and 17,
And, the boss portions (25b) (25c) have first and second
It has notches (25d) and (25e) formed therein, and is rotatably held in the frame plate (24) via a bearing.

The conversion mechanism (26) also includes a main shaft (27) coaxially and slidably fitted in the locking plate (25) in the axial direction.
), a pressure-receiving member (28) that comes into contact with the stopper member (4) of the storage rack (1) (1') is fixed to the tip of the main shaft (27), and the main shaft (27)
First and second positioning pins (29) that are removably fitted and locked into the first and second notches (25d) (25e) of the locking plate (25) are provided at both ends of the locking plate (25). (30) is provided. and the third arm (14) of the telescoping arm (11).
When the stopper member (4) moves to a predetermined position, the stopper member (4)
The pressure receiving member (28) at the tip of the main shaft (27) comes into contact with the
As the third arm (14) moves to its maximum position, it is pressed a predetermined stroke. Along with this pressure, the main shaft (27)
moves in the axial direction without rotating, and the first positioning pin (29) fits into the first notch (25d) of the locking plate (25), and the locking plate (25) moves in the axial direction without rotating. 25) is rotated by a predetermined angle. In this way, the locking plate (25) is attached to the main shaft (2
7) rotates by a predetermined angle for each retraction operation of a predetermined stroke;
The engagement and detachment of the pallet (2) with the hook-shaped member (2b) is repeated.

Now, the procedure for accommodating and taking out automobiles in the multilevel parking apparatus will be explained below.

When accommodating a car (A), first the above-mentioned lifting platform (
7) Move the car (A) onto the upper pallet (2),
make it stop.

Next, the lifting device (5) is activated, and the above-mentioned pallet (2) on which the car (A) is parked is placed on the stage (I) where it was originally housed.
) The lifting platform (7) is raised until it reaches a height of . In this state, the rails (3) (3) of the step (I) and the rails (7a) (7a) of the elevator platform (7) are linearly located on the same horizontal plane.

Next, the transfer device (10) (10) is activated. Then, as described above, the second arm (13) moves in a predetermined direction, that is, in the figure, by the engagement of the circulating chain (15) (15) with the chain rack (18) (1B) of the second arm (13). It protrudes from the first arm (12) toward the right storage rack (1). At the same time, this second arm (1
3), the chain (17) disposed on the second arm (13) circulates by meshing with the chain rack (16) of the first arm (12), and this chain (17)
) is caused by the third chain (17) meshing with this chain (17).
It is transmitted to the third arm (14) by the chain rack (19) of the arm (work 4), and the third arm (14)
It protrudes relative to the second arm (13) in the same direction and at the same speed as the second arm (13).

The locking device (22) disposed on the right side in the longitudinal direction of the third arm (14) moves the rails (7a) of the lifting platform (7) at the same speed as the third arm (14).
When the third arm (14) moves from above toward the rails (3) (3) of the stage (III) and protrudes to a predetermined position, the pressure receiving member (28) of the engagement device (22) is attached to the storage rack. The main shaft (27) retracts because it comes into contact with the stopper member (4) on the (1) side and is relatively pressed. Then, the first positioning pin (29) reaches its maximum position in the first notch (25d) of the locking plate (25), and the locking plate (25) rotates by a predetermined angle, thereby locking the pallet (2). The engagement between the hook member (2b) and the locking plate (25) is released, and the pallet (2)
is placed on the rails (3) (3) of the uppermost stage (I) of the storage rack (1) with the automobile (A) mounted thereon. In this state, the pallet (2) is securely placed on the rails (3) (3).
) (3) is locked from movement on the top.

Next, the transfer device (10) is operated in the opposite direction, and the second and third arms (13) and (14) are returned onto the first arm (12) in the same manner as described above. And storage rack (1)
Other stages (II) (III) of (t'), (I'>
(II'>(I[I') rail (3) (
3) Move one of the empty pallets (2) above to the lifting platform (7)
The lifting device (5) and the transfer device (
10).

For example, when storing the pallet (2) in the uppermost stage (B) of the storage rack (1) on the left in the figure, the lifting platform (7) is stopped at the uppermost position, and the transfer device (10) in the opposite direction, and operate the second arm (13) in the same manner as described above.
The third arm (14) is made to protrude toward the left in the figure.

Then, when the third arm (14) moves to a predetermined position,
The pressure receiving member (28) of the retaining device (22) disposed on the left side in the longitudinal direction of the third arm (14) comes into contact with the stopper member (4) on the storage rack (1) side and is relatively pressed. As a result, the locking plate (25) rotates by a predetermined angle and the pallet (2
) is engaged with the hook member (2b).

In this state, the transfer device (10) is operated in the opposite direction to move the second and third arms (13) (14) to the 17-4 (
12) When returned to the top, the pallet (2) in the secured state is moved to the rail (3) ( 3)
from there onto the rails (7a) (7a) of the lifting platform (7). In this state, the lifting device (5) is operated to lower the lifting platform (7) to the lowest position, and then the lifting device (5) is stopped.

[Problem to be solved by the invention]

As shown in FIG. 15, a transfer device in a conventional multi-level parking system is used to transport the second and third arms (13) (14) of a telescoping arm (11) into a storage rack (1) (
1'), and the holding device (22) is extended greatly toward the storage area of each stage of the pallet (2) at the end of the extension.
Since the structure is to engage the two, the structure is complicated. Moreover, when the telescoping arm (11) is extended, the extension dimension of the arm is large and the arm is cantilevered, so the tip end of the arm hangs down. In order to prevent this, a support rail (20) to prevent the arm from sagging is installed at the accommodation section of each stage of the storage rack (1) (1").
11), it is necessary to install a wheel (21) on the tip of the arm, and a support rail (21) is required.
0) has the problem that the installation work is complicated and the manufacturing cost is high.

Furthermore, the position adjustment work of the holding device (22) and the pallet (2) is complicated.

The present invention has been proposed in view of the above-mentioned problems, and an object of the present invention is to provide a pallet transfer device in a multilevel parking system that has a simple structure and can reduce manufacturing costs.

[Means to solve the problem]

In order to achieve the above object, the present invention disposes a lifter so as to be vertically movable along a structure in which a garage is formed in multiple stages, and places a pallet on which a car is placed on the lifter between the lifter and the garage of the structure. In a multilevel parking system equipped with a transfer device for transferring between vehicles, the transfer device includes a moving platform disposed on a lifter so as to be movable in a straight line with respect to the garage;
A pair of support arms are rotatably supported via pivots at symmetrical positions on both sides of the movable platform and pivoted toward the garage substantially parallel to each other, and are always biased inwardly toward each other. The tip of the support arm is rotatable via a pivot, and the band-shaped guide plate fixed to the underside of the pallet is held from both sides by using the inward urging force acting on the support arm. a pair of friction wheels pivotably supported in a horizontal position; a first drive mechanism installed on the movable table and configured to rotate the friction wheels in forward and reverse directions; and a first drive mechanism disposed at a fixed position on the lifter; and,
a second drive mechanism that moves the mobile platform back and forth in a straight line with respect to the garage, and the friction wheel that clamps the guide plate on the lower surface of the pallet is rotated by the first and second drive mechanisms and moved back and forth. This is what I did.

[Effect]

When the lifter moves up and down along the structure and stops at a desired garage, the second driving means is activated to move the movable platform outward, and the pair of friction wheels is held protruding at the forward end position. , the inner ends of the guide rails on the lower surface of the pallets accommodated in the desired garage are clamped by the pair of friction wheels. When the inner end of the guide rail is held between the pair of friction wheels, the friction wheels are rotated and moved backward by the first and second drive mechanisms. Then, due to the frictional force generated by the rotation of the friction wheel, the guide plate of the pallet is sent inward and is moved and held on the pallet lid.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 9.

In FIGS. 1 to 9, (31) is a structure in which a plurality of cars (A) are accommodated, and this structure (31) is
The garage (32) is formed in multiple stages to form a garage row (33a) (33
b) (33c) and (33a) (33b (33c) are arranged facing each other in a vertical line. At both longitudinal ends of each garage (32) of the structure (31), a short A fixed rail (34) (34) extending in the hand direction is provided. (35) is a turntable rotatably installed in front of the car entrance (36) of the structure (31). When turning, the turntable (35) is used to change the direction of the automobile (A).

(37) is a pallet on which the automobile (A) is placed, and as shown in Figs. 4 and 6, this pallet (37) has a plurality of leg shafts (38) attached to both ends in the longitudinal direction. In addition, as shown in FIG. 8, a band-shaped guide plate (39) is attached to one example of the lower surface in the transverse direction via a bracket (40) in correspondence with a pallet transfer device provided on the lid, which will be described later. It is permanently installed. The above baren) (37) is for each garage (
32) on the fixed rail (34) (34)
8) is placed in a removable manner so that it can be taken out and stored in each garage (32)). The reference numeral (41) shown in FIG. 4 indicates the opposing garage rows (33a) to (3
The lifter (41) is disposed so as to be able to rise and fall in a horizontal position between the lifter (41) and the lifter (41), and is moved up and down by an appropriate drive mechanism. (42) is a rectangular elevating body that constitutes the lifter (41), and this elevating body (42) includes a chain,
It is suspended and held by a hanging member (not shown) such as a wire rope, and first guide rails (43) are provided on both sides of the upper surface.
(43) are installed respectively. (44) is a truck with leg shafts (45) attached to both corners of the front and rear ends, and this truck (44) is attached to the first guide rail (44) of the elevating body (42).
43) By removably mounting the leg shaft (45) on (43), the garage row (33a) to
(33c) and (33a) to (33c), and is installed so as to be able to move horizontally and face a desired garage (32). Furthermore, second guide rails (46) on which the leg shafts (38) of the pallet (37) are removably placed are mounted on the front and rear edges of the cart (44).
It is provided perpendicularly to the direction of movement. (47) is a transfer means for moving the trolley (44), and this transfer means (47) is, for example, as shown in FIG.
A plurality of chain wheels (48a) and a drive chain wheel (48b) are mounted on both sides of the support bracket (42).
A chain (50) rotatably supported via a chain wheel (48a) to (48b)
Both ends are attached and fixed to the front and rear end surfaces of the truck (44).

(51a) and (51b) are pallet transfer devices provided in the lifter (41);
) are arranged on mounting plates (52) (52) installed at both longitudinal ends of the truck (44). For convenience of explanation, FIGS. 1 and 7 are shown for one transfer device (51a).
This will be explained with reference to FIGS. 9 to 9. In the same figure,
(53) (53') is a guide rail installed parallel to the outer edge of the mounting plate (52) in the transverse direction;
4) is a movable platform that is horizontally movably mounted on the guide rail (53) (53''), and this movable platform (54) has the above-mentioned guide rail (53) (53'') on the lower surface of both side edges. A guide member (54a) having a groove formed therein which is slidably fitted into the guide member (54a) is provided, and a box part (54b) having a rectangular cross section is provided at the front edge of the intermediate portion. A flat plate part (54c) is provided at the edge. (55) (55
') are a pair of first pivots that penetrate through symmetrical parts on both sides of the box part (54b) of the moving table (54) and are fixed upright. The box part (protrudes upward from 54b).
56) (56') is the first axis (55) (55')
This support arm (56) is a pair of support arms rotatably supported via a plurality of bearings on the upper protrusion of the support arm (56).
56°) is held substantially parallel to the outer side of the cart (44) in the lateral direction and held in a horizontal position. The support arm (56) (56') has a flat rectangular parallelepiped shape with a space formed inside, and opposing inner surfaces and rear end surfaces are open. (57) (57') is the support arm (5
6) The second pivot shaft (5B) (5B') fixed through the symmetrical position of the tip of (56") is rotatably inserted into the support arm (56) (56°) through multiple bearings. This friction wheel (
57) (57") is a support arm (
56) It is provided so as to protrude from the inner open surface of (56') so that it can come into contact with it. (59) is the support arm (56)
(56″) is a mounting rod that is installed horizontally through the lower corner of the tip of the support arm (56″). )
(60) is swingably attached to the support arm (56'') via a support member, and the tip of the support arm (56'') is slidably protruded laterally from the outer front edge of the support arm (56'').
This is an annular plate fitted to the tip of the annular plate (61).
) is a threaded portion (59) formed at the tip of the mounting rod (59).
It is fixed with a nut (62) screwed into a). (6
3) is a compression spring wound around the tip of the mounting rod (59), and this compression spring (63) is located between the annular plate (61) and the outer front edge of the support arm (56'). It is compressed, and the spring force causes the support arm (56) (56') to move to the first pivot (55) (
55') is constantly biased inward, forming a parallel link mechanism.

(64) is a first drive mechanism for rotating the friction wheels (57) (57'). In the first drive mechanism (64), (65) is a drive motor installed on the - side of the flat plate part (54c) of the moving table (54), and the drive motor (65) projects upward. Drive shaft (66
) to which the drive gear (67) is attached and fixed. (68)
(68°) is the first axis (55) (55”)
The support arm (5
6) Transmission gear installed at the base end of (56'),
The transmission gears (68) (68'') are meshed with each other with their peripheral edges projecting outward from the inner open surface and the rear end open surface of the support arm (56) (56'), and The transmission gear (68) is connected to the drive gear (67).
It is meshed with. (69) (69°) and (7
0) (70') is a chain wheel integrally attached to the transmission gear (68) (68') and friction wheel (57) (57"), respectively, and (71) (71') is each support arm. (56) Endless chain disposed inside (56') and wrapped around chain wheels (69) and (70) and (69') and (70'), (72) (72')
is a tension wheel that is rotatably and adjustable in the width direction at a symmetrical position on the top wall of the support arm (56) (56'), and this tension wheel (72) (72'') is The above endless chain (71)
(71'), and by adjusting the position appropriately in the width direction, the endless chain (71) (71''
) to adjust the tension.

(73) is the above-mentioned friction wheel (57) (57")
) is a second drive mechanism for moving the device back and forth in the lateral direction. In the second drive mechanism (73), (74)
is a drive source such as a motor cylinder installed at a predetermined location on the mounting plate (52) of the trolley (44), and (75) is this drive source (
A case of a predetermined shape installed in connection with (74), (74)
6) is a pressing rod that retractably projects from the tip end surface (75b) of the cylindrical portion (75a) of the case (75), and the tip of this pressing rod (76) is connected to the box bus of the moving table (54). A bracket (
77) via a pivot (78). The case (75) has a built-in ball screw mechanism that converts the driving force of the drive source (74) into linear motion, and this ball screw mechanism allows the pressing rod (76) to linearly protrude and retract. Move the moving table (54) to the guide rail (53).
) (53”).

(79) is a first position detection mechanism for detecting the forward end position and the backward end position of the friction wheels (57) (57') moved back and forth by the second drive mechanism (73). In the first position detection mechanism (79), (80
a) (80b) is a mounting bracket/nod that protrudes horizontally from the upper surface of both ends of the cylindrical part (75a) of the case (75), and (81) is this mounting bracket (81).
0a) A guide rod is installed as a bridge between the proximal ends of (80b) in the same direction as the moving direction of the press rod (76), (82) is the above-mentioned mounting bracket) A guide rod is installed between the distal ends of (80a) and (80b) a mounting rod (81) installed in parallel with the rod (81);
3a) (83b) are the first and second limit switches mounted on both ends of the mounting rod (82) at a predetermined interval, and (84) is the mounting mounted and fixed on the tip of the pressing rod (76). The bracket (85) is the guide rod (8
1) and limit switch (83a)
The pressing body (83b) is fitted in such a way that it can collide with the pressing rod (86), and (86) is a transmission rod arranged parallel to the pressing rod (76).
76) are connected and fixed to the mounting bracket (84) at the tip of the guide rod (81) and the pressing body (85) of the guide rod (81), respectively.

Then, the protruding and retracting motion of the pressing rod (76) is transmitted to the pressing body (85) via the transmission rod (86) to move the pressing body (85) back and forth along the guide rod (81), This pressing body (85) and the limit switch (83a)
) (83b), the friction ring (57) (5
7'), the forward end position and the backward end position are detected.

(87) is a second position detection mechanism for detecting a substantially intermediate position of the friction wheels (57) (57').

This second position detection mechanism (87) operates when the automobile (A) is placed on the empty pallet (37) on the trolley (44) at the lowering end of the lifter (41). (54) is provided with an abutment protrusion (88) protruding from the outer end surface thereof, and a third limit switch (83c) is provided at a predetermined position on the mounting plate (52) of the trolley (44);
When the movable table (54) located at the rearward end position moves forward, the abutting protrusion (88) engages the third limit switch (
83c), the friction wheels (57) (57') are stopped and held at a substantially intermediate position between the backward end position and the forward end position.

Next, the operating procedure of the apparatus of the present invention will be explained as follows.

The lifter (41) on which the pallet (37) is not placed on the truck (44) is raised to the desired height of the garage (32). While the lifter (41) is rising, the drive chain wheel (48b is driven to rotate and the chain (50) moves in a predetermined direction) moves, and this movement causes the carriage (44) on the elevating body (42) to move.
) moves in a predetermined direction along the first guide rail (43) (43), and the trolley (44) is held facing a desired garage (32) from which the automobile (A) is taken in and out. (32) fixed rails (34) (34) and trolley (4)
4) and the second guide rails (46) (46) are located on the same straight line on the same horizontal plane.

After that, the drive source (
74) is activated, and the pressing rod (76), which had been retracted, protrudes due to the driving force of this driving source (74). Due to the protrusion of the pressing rod (76), the moving table (54) moves forward along the guide rail (53), and at the same time, the pressing body (85) slides along the guide rod (81). Then, apply the first glue to the miso switch (83a). Then, the second drive mechanism (73) stops operating, the pair of friction wheels (57) (57') is held protruding at the forward end position, and the pallet (37) accommodated in the desired garage (32) is held.
) is clamped by the friction wheel (57) (57°) which is always urged inward by the spring force of the compression spring (63). The support arm (56) (56') swings around the pivot (55) (55') due to the action of the parallel link mechanism, so that it can be positioned at the mounting position of the guide plate (39) on the lower surface of the pallet (37). Even if there is an error, if the inner end of the guide plate (39) hits either one of the friction wheels (57) (57°),
The support arms (56) (56') swing, and the inner end of the guide plate (39) is securely clamped by the friction wheels (57) (57'). When the part is held between the friction wheels (57) (57'), the drive gear (67) of the first drive mechanism (64) rotates at approximately the same time, and the drive gear (67) of the second drive mechanism (73) rotates. Pressing rod (
76) enters and exits. The drive gear (67) is one transmission gear (68) of the transmission gears (68) (68'') meshing with each other.
Since the rotation of the drive gear (67) is in mesh with the transmission gear (68) (68°) and the endless chain (7
1) (71') and chain wheel (69)~
Friction wheels (57) paired with (70°) (57
). On the other hand, the movable table (54) retreats due to the retraction of the press rod (76). Therefore, the friction wheels (57) (57') move backward while rotating, and as the friction wheels (57) (57°) move backward, the pallet held between the friction wheels (57) (57'') The guide plate (39) on the lower surface is sent inward by the frictional force generated by the rotation of the friction wheels (57) (57'), and as a result, the leg shaft (38) of the pallet (37) is moved into the garage (32). The pallet (37) is transferred from the fixed rails (34), (34) to the second guide rails (46) (46) of the truck (44) and transferred onto the lid (41).

Then, when the pressing rod (76) enters, the pressing body (85) slides backward by the guide rod (81) and collides with the second limit switch (83b), and then the first and second drive Mechanisms (64) and (73) stop operating, and the pallet (37) and the dolly (44) of the beam lid (41)
A pair of friction wheels (57
) (57') is the guide plate (39) on the bottom of the pallet.
Clamp the outer ends of the When the empty pallet (37) is transferred and placed on the lifter (41) in this way, the lifter (41)
) is lowered and held at the lower end. Above lifter (41)
is held at the descending end, the retracted press rod (76) of the second drive means (73) protrudes, and the protrusion of the press rod (76) causes the movable platform (54) to move toward the guide rail ( 53) At the same time as moving forward along (53'), the pressing body (85) slides along the guide rod (81) and collides with the third limit switch (83c). The drive mechanism (73) stops operating, and the pair of friction wheels (57) (57') moves to the outer end of the guide plate (39) of the barrel l-(37), as shown in FIG. The guide of the barrel l-(37) housed in the pallet (37) on the trolley (44) and the lowest garage (32) is removed from the position approximately halfway between the forward end position and the backward end position. It is held at an intermediate position between the plate (39) and the plate (39). In this state, move the car (A) on the turntable (35) to the structure (
31) and the pallet (37) on the trolley (44).
) move up and stop. When the car (A) enters the pallet (37), the pallet (37) bends.

And there is a car (A) on the pallet (37) on the trolley (44)! ! Once placed, the pressing rod (76) of the second drive means (73) retracts. This pressing rod (76)
, the pressing body (85) slides rearward along the guide rod (81) and closes the second limit switch (83b).
When the collision occurs, the second drive mechanism (73) stops operating, and the friction wheels (57) (57') are located at the backward end position and again push the outer end of the guide plate (39) on the lower surface of the pallet. to hold. When the friction wheels (57) (57') are held at the original backward position, the lifter (41) is moved to the garage where the pallet (37) on which the automobile (A) was placed was originally housed. 32). Then, the cart (44) of the lifter (41) is placed in the desired garage (32).
Opposite is the fixed rail (34) of this garage (32).
(34) and the second guide rail (34) of the truck (44)
When (34) and are held on the same horizontal line,
The first and second drive mechanisms (64) (73) are activated. Then, the drive gear (67) of the drive motor (65) rotates, the press rod (76) protrudes, and the pair of friction wheels (57) (57') rotates and moves forward in the pallet unloading direction. As the friction wheel (57) (57°) moves forward, the guide plate (39) on the lower surface of the pallet sandwiched between the friction wheel (57) (57') moves
) (57'') is sent outward due to the frictional force generated by the rotation of the pallet (37), and as a result, the leg shaft (38
) is the second guide rail (46) (
46) to the fixed rail (34) of the garage (32) (3
4), the pallet (37) is transferred to the garage (32). When the pressing body (85) slides forward along the guide rod (8) and collides with the first limit switch (83a) due to the protrusion of the pressing lock (76), the first and second limit switches (83a) are moved forward. 2 drive mechanism (64) (73
) stopped working, and Valen) (37) was in the garage (32).
A pair of friction wheels (57) which are positioned and held in a fixed position.
(57") clamps the inner end of the guide plate (39) on the bottom surface of the pallet. In this way, the car (
A) is accommodated, the pressing rod (76) of the second driving means (73) retracts, and the retracting of the pressing rod (76) causes the friction wheels (57) (57') to move against the lower surface of the pallet. At the same time as it comes off the guide plate (39), the pressing body (85) collides with the second limit switch (83b), and the friction wheel (57) (57'') is held in its original position at the backward end. Thereafter, the same procedure is used to enter and exit the vehicle (A).

In addition, although the above-mentioned example explained the case where it was installed in a building such as a parking tower or applied to a lid, the present invention is not limited to this, and the present invention can be installed in a storage rack or applied to a lid. be able to.

〔Effect of the invention〕

According to the present invention, the stroke size in the back and forth movement of the pair of friction wheels is extremely short, the structure is simple, the pallet can be downsized, and the pallet can be moved in and out at high speed and with low noise. Moreover, there is no need to attach support rails for supporting the transfer device to each garage as in the past, and the production is easy and the production cost can be significantly reduced.

[Brief explanation of drawings]

Fig. 1 is a partially sectional plan view showing an embodiment of the device of the present invention, Fig. 2 is a schematic plan sectional view of a multilevel parking system to which the device of the present invention is applied, Fig. 3 is a front sectional view thereof, and Fig. 4 is a cross-sectional view. A schematic front view of the lid, FIG. 5 is a plan view of a cart equipped with the device of the present invention, FIG. 6 is a front view of the cart on which a pallet is mounted, and FIG. FIG. 8 is a right side view of the device of the present invention, and FIG. 9 is an explanatory diagram showing a state in which the friction wheel is held at an intermediate position between the forward end position and the backward end position. Figures 10 to 17 show the multi-level parking system of the previous application proposed by the present applicant, Figures 10 and 11 are front and side views of the multi-level parking system, and Figure 12 is a plan view of the pallet. 13 and 14 are enlarged front views and plan views of main parts of a lifting platform equipped with a conventional pallet transfer device,
FIG. 15(a)O)) is a schematic diagram for explaining the operation of the telescoping arm, and FIG. 16 is an enlarged side view of the retaining device. (A)-Automobile, (31)-Construction, (32L
--One garage, (37)-Pallet, (39)
-m-guide plate, (41)-lifter, (51a)
(51b) - m-transfer device, (54) - moving table, (55) (55°) (58) (58') - pivot,
(56) (56”)-・Support arm, (57)
(57”) - Friction wheel, (64) - First drive mechanism, (73) - Second drive mechanism. Fig. 17 is Fig. 16

Claims (1)

[Claims] (1) A lifter is arranged vertically movably along a structure in which a garage is formed in multiple stages, and the lifter is equipped with a transfer device that transfers a pallet on which a car is placed between the lifter and the garage of the structure. In the multilevel parking system, the transfer device includes a moving platform disposed on a lifter so as to be movable in a straight line with respect to the garage; and a pair of support arms that are pivoted approximately parallel toward the garage and that constantly apply biasing forces inwardly to each other; A pair of friction wheels are pivotally supported in a horizontal position so as to be able to grip the band-shaped guide plate fixed to the bottom surface of the pallet from both sides by using the inward biasing force acting on the arm, and the above-mentioned movement A first drive mechanism that is installed on the platform and rotates the friction wheel in forward and reverse directions; and a second drive mechanism that is installed at a fixed position on the lifter and that moves the movable platform back and forth in a straight line with respect to the garage. A pallet transfer device in a multi-story parking system, characterized in that the friction wheel holding the guide plate on the lower surface of the pallet is moved back and forth while being rotated by first and second drive mechanisms.