JPH0689611B2 - Pallet transfer device for multilevel parking system - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet transfer device in a multilevel parking device capable of accommodating a large number of vehicles in multiple stages within a limited site.

[Conventional technology]

In recent years, as the number of automobiles has increased, it is necessary to secure a parking lot in an area with a particularly heavy traffic such as an urban area. Therefore, a multi-story parking system capable of accommodating a large number of automobiles in a limited installation space has become widespread. . The applicant of the present invention has proposed a multi-level parking apparatus in Japanese Patent Application No. 62-66654, which is shown in FIGS.
Shown in the figure.

In FIGS. 10 to 17, (1) and (1 ') are multi-tiered storage racks arranged opposite to each other, and each tier can accommodate a pallet (2) on which an automobile (A) is placed. Rails (3) (3) are arranged along the width direction [left and right direction in FIG. 10] on the front and back sides of the accommodation racks (1) (1 ') for accommodating the pallets (2). Has been done. Further, stopper members (4) (4) ... Are arranged and fixed at predetermined positions inside the rails (3) (3).

Positions along the rails (3) and (3) of the pallet (2),
That is, casters (2a) (2a) for moving the pallet (2) in the width direction are provided on both sides in the lateral direction. Further, hook members (2b) and (2b) are arranged at two positions on both sides in the width direction on the lower surface of the pallet (2).

(5) is an elevating device arranged in one of the accommodation racks (1) and (1 '), and is provided with an elevating table (7) that ascends and descends via a drive mechanism (6). Have The elevating table (7) is capable of ascending and descending the side surface of the storage rack (1) in a state where it is always maintained in a horizontal state via two types of large and small guide rollers (8), (9), (8) and (9). Has become.

Reference numeral (10) is a transfer device arranged on the lift table (7), and the pallet (2) is transferred between the storage rack (1) and the lift table (7). The transfer device (10) is composed of a multi-stage telescopic arm (11) and an engaging device for engaging with the pallet (2), and the telescopic arm (11) is a lift table (7).
Are mounted in two positions on the front side and the rear side in the width direction of the lift table (7). The telescopic arms (11) are first to
It is composed of third arms (12), (13) and (14), and the first arm (12) is fixed to the lift table (7). Chains (15) and (15) are stretched in the longitudinal direction of the first arm (12), and chain racks (16) and (16) are fixedly mounted on both ends of the upper surface. The second arm (13) is the first arm (12).
It is movably covered so that the longitudinal directions thereof coincide with each other.
A chain (17) is stretched in the longitudinal direction of the second arm (13), and four chain racks (18) are provided at both ends of the lower surface.
(18)… is fixed and this chain rack (18)
(18) ... are chains (1) arranged on the first arm (12).
5) Engage with the upper side of (15). Therefore, the second arm (1
3) is the first arm (12), which is shown in FIG. 15 (a).
Chain (15) circulating inside and chain rack (18)
It moves in a predetermined direction by meshing with (18). The third arm (14) is movably covered on the second arm (13) in the same longitudinal direction. This 3rd Arm (14)
Chain racks (19) (19) similar to those described above are fixedly attached to both ends of the lower surface in the longitudinal direction of the chain rack. The chain racks (19) (19) are mounted on the second arm (13) (17). ) Is engaged with the upper side. Therefore, the third arm (14)
As shown in FIG. 15 (b), is the side of the second arm (13) that circulates due to the meshing of the first arm (12) with the chain rack (16) as the second arm (13) moves. The meshing of the chain (17) and the chain rack (19) of the third arm (14) causes the second arm (13) to move at the same speed as the moving speed of the second arm (13) with respect to the first arm (12). Move against. Reference numeral (20) shown in FIG. 15 (a) is a support rail for preventing the third arm (14) from hanging when the telescopic arm (11) is extended,
The support rail (20) is arranged in each stage of the accommodation rack (1) in the pallet accommodating portion so as to correspond to the telescopic arm (11), and the support rail (20) allows the third arm ( A wheel (21) rotatably attached to the tip of 14) is rotatably supported.

Further, the pallet (2) and the engagement devices (22) and (22) are arranged at two positions on the outer side surface of the third arm (14), which are slightly closer to the center in the longitudinal direction.

As shown in FIG. 16 and FIG. 17, the engagement device (22) includes 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 vertical frame plates (24) (24) and frame plates (24) (2)
The locking plate (25) held by the locking plate (4) and a linear motion-rotational motion converting mechanism (26) disposed on the locking plate (25).

The locking plate (25) has a locking claw (25a) projecting in a diametrical direction and a boss portion (25b) (25c) projecting in an axial direction as shown in FIGS. 16 and 17, and , The first and second notches (25d) (2) on the bosses (25b) (25c).
5e) is formed and is rotatably held on the frame plates (24) and (24) via bearings.

Further, the conversion mechanism (26) uses a spindle (27) fitted coaxially to the locking plate (25) and slidably in the axial direction, and the tip of the spindle (27). A pressure receiving member (28) that abuts on the stopper member (4) of the accommodation rack (1) (1 ') is fixed to this, and at both ends of the main shaft (27), the first locking plate (25) of the locking plate (25) is attached. 1st and 2nd notch (25d)
First and second positioning pins (29) and (30) which are removably fitted and locked in (25e) are provided. Then, when the third arm (14) of the telescopic arm (11) moves to a predetermined position, the main shaft (27) is attached to the stopper member (4).
The pressure receiving member (28) at the tip of the abutment abuts and is pressed by a predetermined stroke as the third arm (14) moves to the maximum position. With this pressing, 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),
The locking plate (25) is rotated by a predetermined angle. In this way, the locking plate (25) rotates by a predetermined angle each time the main shaft (27) retracts by a predetermined stroke, and repeats engagement and disengagement with the hook-shaped member (2b) of the pallet (2).

Now, a description will be given below of how to store and take out a vehicle in the above-described multilevel parking apparatus.

In housing the automobile (A), first, the automobile (A) is moved onto the pallet (2) on the lift table (7) and stopped.

Next, the elevating device (5) is operated to raise the elevating table (7) to the level of the stage (I) in which the pallet (2) for stopping the automobile (A) was originally stored. . In this state, the rail (3) of the above step (I)
(3) and the rails (7a) and (7a) of the lift table (7) are linearly positioned on the same horizontal plane.

Next, the transfer devices (10) (10) are operated. Then, as described above, the second arm (13) is connected to the circulating chain (15).
Chain rack (18) (1) of (15) and second arm (13)
By engaging with 8), it projects from the first arm (12) in a predetermined direction, that is, toward the accommodation rack (1) on the right side in the figure. At the same time, along with the movement of the second arm (13), the chain (17) arranged on the second arm (13) becomes the first arm (12).
Of the third arm (14) is circulated by meshing with the chain rack (16) of the third arm (14) and the circulation operation of the chain (17) is performed by the chain rack (19) of the third arm (14) meshing with the chain (17). Is transmitted to the third arm (14),
It projects with respect to the second arm (13) at the same speed in the same direction as the second arm (13).

Then, by the engaging device (22) arranged on the right side in the longitudinal direction of the third arm (14), on the rails (7a) (7a) of the lift table (7) at the same speed as the third arm (14). Karadan (II
When the third arm (14) moves to the rails (3) (3) of (I) and the third arm (14) projects to a predetermined position, the pressure receiving member (28) of the engagement device (22) moves toward the accommodation rack (1) side. The main shaft (27) is mixed therein because it comes into contact with the stopper member (4) and is relatively pressed. Then, the first positioning pin (2
9) fits into the first notch (25d) of the locking plate (25),
The locking plate (25) is rotated by a predetermined angle to release the engagement state between the hook member (2b) of the pallet (2) and the locking plate (25), and the pallet (2) is a car (A). Rails (3) at the top (I) of the storage rack (1)
(3) It is placed on top. In this state, the pallet (2) is securely placed on the rails (3) and (3) and locked so as not to move on the rails (3) and (3).

Next, the transfer device (10) is operated in the reverse direction, and the second and third arms (13, 14) are returned onto the first arm (12) in the reverse procedure to the above. And storage rack (1)
Other stages of (1 ') (II) (III), (I') (II ') (I
The lifting device (5) and the transfer device (10) are operated so that one of the empty pallets (2) on the rails (3) and (3) of II ') is stored on the lifting platform (7). For example, when accommodating the pallet (2) of the uppermost stage (I ') of the accommodation rack (1) on the left side of the drawing, the transfer device (10) is used with the lift table (7) stopped at the above-mentioned uppermost position. ) In the opposite direction, and operate the second arm (13) and the third arm (1
4) Project to the left in the figure. When the third arm (14) moves to a predetermined position, the third arm (14)
The pressure receiving member (28) of the engagement device (22) arranged on the left side in the longitudinal direction of the contact plate comes into contact with the stopper member (4) on the accommodation rack (1) side and is relatively pressed, whereby the locking plate ( 25) rotates a predetermined angle and engages with the hook member (2b) of the pallet (2).

In this state, when the transfer device (10) is operated in the reverse direction to return the second and third arms (13, 14) onto the first arm (12), the third arm (14) is retracted. By the inserting operation, the pallet (2) in the engaged state is moved from the rails (3) and (3) of the uppermost stage (I ′) of the storage rack (1) to the rails (7a) and (7a) of the lift table (7). Be moved to. Then, 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.

[Problems to be Solved by the Invention]

As shown in FIG. 15, the transfer device in the conventional multi-level parking device includes the second and third arms (13, 14) of the telescopic arm (11) for each of the storage racks (1), (1 '). Since the structure is made to greatly extend toward the storage portion of the step and the engaging device (22) is engaged with the pallet (2) at the extended end position, the structure becomes complicated. Moreover, the telescopic arm (1
When the extension of (1) is performed, the extension dimension of the arm is large and the arm is cantilevered, so the tip of the arm hangs down. The support rail (20) for preventing the hang-down of the rack and the storage racks (1) and (1 ') are arranged at the storage portions of the respective stages corresponding to the telescopic arms (11), and the wheels (21) are attached to the tips of the arms. Since it is necessary to attach the support rail (20), the work of attaching the support rail (20) is complicated, and the manufacturing cost is high.

Further, the work of adjusting the positions of the engagement device (22) and the pallet (2) is complicated.

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

[Means for Solving the Problems]

In order to achieve the above object, the present invention arranges a lifter so as to be vertically movable along a structure in which a garage is formed in multiple stages, and a pallet on which an automobile is mounted is provided between the lifter and the garage of the structure. In a multi-story parking apparatus equipped with a transfer device that transfers between, the transfer device, a moving table disposed on the lifter so as to be linearly reciprocable with respect to the garage,
A pair of support arms, which are rotatably supported by pivots on both sides of the moving base via pivots, and which are pivotally supported substantially parallel to the garage, and are always biased inward toward each other. The tip of the support arm can be pivoted via a pivot, and the inward biasing force acting on the support arm is used to hold the strip-shaped guide plate fixed to the lower surface of the pallet from both sides. A pair of friction wheels pivotally supported in a horizontal posture, a first drive mechanism mounted on the moving table and rotating the friction wheels forward and backward, and arranged at a fixed position on the lifter, And,
A second drive mechanism that linearly reciprocates the moving table with respect to the garage, and the friction wheel holding the guide plate on the lower surface of the pallet is moved back and forth while being rotated by the first and second drive mechanisms. It is the one.

[Action]

When the lifter moves up and down along the structure and stops at the desired garage, the second drive means is activated to move the movable table outward, and the pair of friction wheels are projected and held at the forward end position. The inner end of the guide rail on the lower surface of the pallet housed in the desired garage is held by the pair of friction wheels. When the inner end of the guide rail is taught by a pair of friction wheels, the friction wheel is rotated and retracted by the driving of the first and second drive mechanisms. The guide plate of the pallet is sent inward by the frictional force generated by the rotation of the friction wheel, and the pallet is moved and held on the lifter.

〔Example〕

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

1 to 9, (31) is a building that accommodates a plurality of automobiles (A), and this building (31) has a garage (32) formed in multiple stages to form a garage row (33a) ( 33b) (33
c) and (33a) (33b) (33c) are opposed to each other and are respectively arranged in tandem. Each garage (3 of the above structure (31)
Fixed rails (34) (34) extending in the lateral direction are provided at both longitudinal ends of 2). (35) is the above construct (3
When the vehicle is moved in and out with the turntable rotatably installed in front of the vehicle entrance (36) of 1), the vehicle (A) is turned by the turntable (35). (37) is a pallet on which the automobile (A) is placed on the upper surface. As shown in FIGS. 4 and 6, the pallet (37) has a plurality of leg wheels (38) mounted on both longitudinal ends thereof. Further, as shown in FIG. 8, a strip plate-shaped guide plate (39) is provided on one side of the lower surface through a bracket (40) in a lateral direction corresponding to a pallet transfer device provided in a lifter described later. It is fixed to. The pallet (37) is removably accommodated in each garage (32) by mounting the leg wheels (38) on the fixed rails (34) (34) of each garage (32) so as to be rollable. . Reference numeral (41) shown in FIG. 4 is a lifter which is arranged between the facing garage rows (33a) to (33c) of the structure (31) so as to be able to move up and down in a horizontal posture. This lifter (41) is , Is moved up and down by an appropriate drive mechanism. Reference numeral (42) is a rectangular lifting body that constitutes the lifter (41).
Is a hanging member such as a chain or wire rope (not shown)
The first guide rails (43) and (43) are installed on both side edges of the upper surface. (44) is a dolly having leg wheels (45) attached to both corners at the front and rear ends, and the dolly (44) has a first guide rail (4) of the lifting body (42).
3) A leg wheel (45) is rotatably mounted on (43), so that the garage rows (33a) to (33c) and (33) are placed on the elevator body (42).
It is installed so that it can move horizontally between a) to (33c) and can face a desired garage (32). Further, at the front and rear edges of the carriage (44), the second guide rails (46) (46) on which the leg wheels (38) of the pallet (37) are rotatably mounted are mounted.
Are provided so as to be orthogonal to the moving direction of the carriage (44). (Four
7) is a transfer means for moving the carriage (44), and this transfer means (47) has a plurality of chain wheels (48a) and a plurality of chain wheels (48a) on both sides of the lifting body (42), for example, as shown in FIG. Supports drive chainwheel (48b) (4
It is rotatably supported via 9), and both ends of a chain (50) wrapped around the chain wheels (48a) to (48b) are fixedly attached to the front and rear end faces of the bogie (44).

(51a) and (51b) are pallet transfer devices provided on the lifter (41). The transfer devices (51a) and (51b) are mounting plates (52) (installed at both ends in the longitudinal direction of the carriage (44). 52)
It is located at. For convenience of explanation, one transfer device (51
A) will be described with reference to FIGS. 1 and 7 to 9. In the figure, (53) and (53 ') are guide rails installed parallel to the lateral direction on the outer edge of the mounting plate (52), and (54) is horizontal to the guide rails (53) and (53'). This is a mobile table that is mounted so that it can be moved (54)
The guide rails (53) (53) on the lower surface of both side edges.
A guide member (54
The box portion (54b) having a rectangular cross section is provided at the front edge of the intermediate portion, and the flat portion (54c) is provided at the rear edge of the intermediate portion. Reference numerals (55) and (55 ') are a pair of first pivots penetrating through both side symmetrical portions of the box portion (54b) of the moving base (54) and fixed in a standing manner. The first pivots (55) (55) ′) Above the box part (54
It is projected above b). (56) (56 ') is the first
Support arms (56) (56 '), which are rotatably supported by a plurality of bearings on the upper protrusions of the pivot shafts (55) (55') of the vehicle, and which are mounted on the carriage (44). Is held substantially parallel to the outer side in the lateral direction and in a horizontal posture. The support arms (56) (56 ') have a flat rectangular parallelepiped shape with a space formed inside, and the inner surface and the rear end surface facing each other are open. (57) (57 ') are support arms (56)
A support arm (56) via a plurality of pivots on a second pivot (58) (58 ') which is fixed by penetrating at the symmetrical position of the tip of (56').
A pair of friction wheels rotatably supported in (56 '). The friction wheels (57) (57') have opposing inner portions protruding from the inner open surface of the support arms (56) (56 '). It is provided so that it can contact. (59) is the support arm (56) (5
6 ') is a mounting rod horizontally penetrating the lower corner of the tip, and the base end of this mounting rod (59) has a support arm (5
Mounting bracket (60) fixed to the front edge of the outer surface of 6)
It is slidably attached to the end of the
It is slidably projected laterally from the outer front end edge of the support arm (56 '). Reference numeral (61) is an annular plate fitted to the tip of the mounting rod (59). The annular plate (61) is a nut screwed to a screw portion (59a) formed at the distal end of the mounting rod (59). (6
It is fixed in 2). (63) is a compression spring wound around the tip of the mounting rod (59), and the compression spring (63) is located between the annular plate (61) and the outer front end edge of the support arm (56 '). Is compressed between the support arms (56) (56 ') by the spring force of the first pivot (55).
A parallel link mechanism is formed by constantly urging inwardly around (55 ').

Reference numeral (64) is a first drive mechanism for rotating the friction wheels (57), (57 '). In the first drive mechanism (64), reference numeral (65) is a drive motor installed on one side of the flat plate portion (54c) of the moving table (54) and protrudes upward from the drive motor (65). A drive gear (67) is attached and fixed to the drive shaft (66). (68) (68 ') is the first pivot (55)
A transmission gear rotatably supported by (55 ') by a plurality of bearings and arranged at the base end of the support arms (56) (56'),
The transmission gears (68) (68 ') are meshed with each other with their peripheral edges protruding outward from the inner open surface and the rear end open surface of the support arms (56) (56'). The transmission gear (68) is engaged with the drive gear (67). (69) (69 ') and (70) (70') are chain wheels integrally attached to the transmission gears (68) (68 ') and the friction wheels (57) (57'), respectively (71) (71) ′) Is an endless chain disposed in each support arm (56) (56 ′) and wrapped around the chain wheels (69) and (70) and (69 ′) and (70 ′), respectively (72) A tension wheel (72 ') is rotatably mounted at a symmetrical position on the top wall of the support arm (56) (56') so as to be positionally adjustable in the width direction, and the tension wheel (72) ( 72 ') is engaged with the endless chains (71) (71'), respectively, and the tension of the endless chains (71) (71 ') is adjusted by appropriately adjusting the position in the width direction.

(73) is a second drive mechanism for moving the friction wheels (57, 57 ') back and forth in the lateral direction of the carriage (44). In the second drive mechanism (73), (74) is the carriage (44).
A drive source such as a motor cylinder installed at a predetermined portion of the mounting plate (52), a (75) is a case having a predetermined shape connected to the drive source (74), and (76) is the case (75). )
Of the cylindrical portion (75a) of the moving rod (76), and the tip of the pressing rod (76) is projected on the rear wall surface of the box portion (54b) of the moving table (54). It is connected to a fixed bracket (77) via a pivot (78).
A ball screw mechanism for converting the driving force of the drive source (74) into a linear motion is built in the case (75). The ball screw mechanism linearly projects and retracts the pressing rod (76). Operate and move the carriage (54) to the guide rail (53)
Move back and forth along (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). First above
In the position detection mechanism (79), (80a) and (80b) are mounting brackets horizontally projecting laterally on the upper end portions of both ends of the tubular portion (75a) of the case (75), and (81) is Between the base ends of the mounting brackets (80a) (80b), the pressing rod (7
Guide rod bridged in the same direction as (6), (8
2) is a mounting rod bridged between the tips of the mounting brackets (80a) (80b) in parallel with the guide rod (81), and (83
a) (83b) are first and second limit switches mounted on both ends of the mounting rod (82) with a predetermined space, (84)
Is a mounting bracket fixedly attached to the tip of the pressing rod (76), and (85) is slidably fitted on the guide rod (81) and is capable of abutting against the limit switches (83a) (83b). The pressing body (86) is a transmission rod arranged in parallel with the pressing rod (76), and both ends of the transmission rod (86) have a mounting bracket (84) at the tip of the pressing rod (76).
And a pressing body (85) of the guide rod (81). Then, the projecting / retracting motion of the pressing rod (76) is transmitted to the pressing body (85) via the transmission rod (86),
Move the pressing body (85) back and forth along the guide rod (81),
This pressing body (85) and the limit switch (83a) (83
The forward end position and the backward end position of the friction wheels (57) (57 ') are detected by the collision with b).

Reference numeral (87) is a second position detecting mechanism for detecting a substantially intermediate position of the friction wheels (57) and (57 '). The second position detecting mechanism (87) is arranged so that the carriage (4
4) It operates when the automobile (A) is placed on the empty pallet (37). For example, an abutment protrusion (88) is provided on the outer end surface of the moving base (54) and the truck (44) ) The third limit switch (83c) is arranged at a predetermined position on the mounting plate (52), and the movable table (54) is located at the backward end position.
Of the friction wheel (57) (5) when the abutment projection (88) abuts against the third limit switch (83c) when moving forward.
7 ') is stopped and held at a substantially intermediate position between the backward end position and the forward end position.

The operation procedure of the device of the present invention will be described below.

The lifter (41) on which the pallet (37) is not placed on the dolly (44) is lifted to the desired height of the garage (32). While the lifter (41) is moving upward, the drive chain wheel (48b) is rotationally driven to move the chain (50) in a predetermined direction, and this movement causes the carriage (44) on the lifting body (42) to move to the first position. The trolley (44) moves in a predetermined direction along the guide rails (43) and (43) of No. 1 and is held in opposition to a desired garage (32) for loading and unloading the automobile (A). The fixed rails (34) (34) and the second guide rails (46) (46) of the carriage (44) are located on a straight line on the same horizontal plane.

Then, the drive source (74) of the second drive mechanism (73) of the pallet transfer device (51a) provided in the lifter (41) is activated, and the drive force of the drive source (74) causes the withdrawal. The pressing rod (76) that had been used protrudes. The movable table (54) is moved to the guide rails (53) (53) by the protrusion of the pressing rod (76).
At the same time as moving forward along the guide rod (85), the pressing body (85) slides along the guide rod (81) and abuts against the first limit switch (83a). Then, the operation of the second drive mechanism (73) is stopped, the pair of friction wheels (57) (57 ') are projected and held at the forward end position, and the pallet (37) accommodated in the desired garage (32). The inner end of the guide plate (39) on the lower surface of the friction wheel (57) (57 ') is always urged inward by the spring force of the compression spring (63). Since the support arms (56) (56 ') swing about the pivots (55) (55') by the action of the parallel link mechanism, the pallets (37).
Even if there is an error in the mounting position of the guide plate (39) on the bottom surface of the support arm (56) when the inner end of the guide plate (39) hits one of the friction wheels (57) (57 '). (56 ') swings, and the inner end of the guide plate (39) has a friction wheel (57).
It is surely held by (57 '). Guide plate (39)
When the inner end portion of the drive gear is clamped by the friction wheels (57) (57 '), the drive gear (67) of the first drive mechanism (64) rotates at the same time as this, and the second drive mechanism ( 73) Press rod (76)
Retreat. Since the drive gear (67) meshes with one transmission gear (68) of the transmission gears (68) (68 ') which mesh with each other, the rotation of the drive gear (67) is limited to the transmission gears (68) (6).
8 ') and endless chains (71) (71') and chain wheels (69) to (70 ') are transmitted to the friction wheels (57) (57) forming a pair. On the other hand, the pressing rod (7
The mobile platform (54) moves backward due to the withdrawal of 6). Therefore, the friction wheels (57) (57 ') are retracted while rotating, and the pallets held between the friction wheels (57) (57') by the retraction of the friction wheels (57) (57 '). The lower guide plate (39) is fed inward by the frictional force generated by the rotation of the friction wheels (57) (57 '), and as a result, the pallet (3
The leg wheels (38) of 7) are fixed rails (34) (3) of the garage (32).
4) to the second guide rail (46) (46) of the carriage (44)
The pallet (37) is transferred to the lifter (41). Then, due to the withdrawal of the pressing rod (76),
When the pressing body (85) slides backward by the guide rod (81) and collides with the second limit switch (83b), the first and second drive mechanisms (64) (73) stop operating. , The pallet (37) is positioned and held at a fixed position on the dolly (44) of the lifter (41), and the pair of friction wheels (57, 57 ') are attached to the outer end of the guide plate (39) on the lower surface of the pallet. Hold in. When the empty pallet (37) is transferred and placed on the lifter (41) in this way, the lifter (41) descends and is held at the descending end.
When the lifter (41) is held at the lower end, the retracted pressing rod (76) of the second drive means (73) projects,
Due to the protrusion of the pressing rod (76), the movable table (54) moves forward along the guide rails (53) and (53 '), and at the same time, the pressing body (85) slides along the guide rod (81). Then, the second drive mechanism (73) stops operating, and the pair of friction wheels (57) (57 ') are brought into contact with the third limit switch (83c), as shown in FIG. At a substantially intermediate position between the forward end position and the backward end position, that is, the carriage (44), which is out of the outer end of the guide plate (39) of the pallet (37)
It is held at an intermediate position between the upper pallet (37) and the guide plate (39) of the pallet (37) housed in the lowermost garage (32). In this state, the automobile (A) on the turntable (35) is allowed to enter the structure (31) and stopped moving on the pallet (37) on the truck (44). When a car (A) is loaded into this pallet (37), the pallet (37)
I bend. When the automobile (A) is placed on the pallet (37) on the carriage (44), the pressing rod (76) of the second drive means (73) retracts. When the pressing body (85) slides backward along the guide rod (81) and abuts against the second limit switch (83b) due to the withdrawal of the pressing rod (76), the second drive mechanism ( 73) stops operating, and the friction wheels (57) (57 ') are positioned at the retracted end positions and again hold the outer end of the guide plate (39) on the lower surface of the pallet. When the friction wheels (57) and (57 ') are held at the original retracted end positions in this manner, the lifter (41) is placed in the garage where the Pareto (37) on which the automobile (A) is originally stored ( 32) Raise to the height of. Then, the carriage (44) of the lifter (41) faces the desired garage (32), and the fixed rails (34) (34) of this garage (32) and the second guide rail (34) of the carriage (44).
When (34) and (34) are held on the same straight line, the first and second drive mechanisms (64, 73) are activated. Then, the drive gear (67) of the drive motor (65) rotates and the pressing rod (76) protrudes to form a pair of friction wheels (57) (5).
7 ') It moves forward while rotating in the pallet carry-out direction, and by the forward movement of the friction wheels (57) (57'), the friction wheels (57) (5
Guide plate (39) on the bottom of the pallet held between 7 ')
Are sent outward by the frictional force generated by the rotation of the friction wheels (57) (57 '), and as a result, the leg wheels (38) of the pallet (37) are moved to the second guide rail () of the truck (44). 46)
The pallet (37) is transferred to the garage (32) from the (46) on the fixed rails (34) (34) of the garage (32). Then, when the pressing body (85) slides forward along the guide rod (81) due to the protrusion of the pressing rod (76) and collides with the first limit switch (83a), the first and second Drive mechanisms (64) (73) stop operating, the pallet (37) is positioned and held in a fixed position in the garage (32), and the paired friction wheels (57) (57 ') are guided on the bottom surface of the pallet. Hold the inner end of the plate (39). Thus desired garage (32)
When the vehicle (A) is housed in the second drive means (73)
The push rod (76) of the push rod retreats, and the push rod (76) withdraws the friction wheels (57) (57 ') from the guide plate (39) on the lower surface of the pallet, and at the same time, the push body (85). Is the second
Abut the limit switch (83b) of the friction wheel (57) (5
7 ') is held in standby at the original position of the backward end. In the same way, move the car (A) in and out.

It should be noted that although the above-described embodiment has been described as applied to a lifter installed in a building such as a parking tower, the present invention is not limited to this and is also applied to a lifter installed in a storage rack. be able to.

〔The invention's effect〕

According to the present invention, the stroke size in the front-back movement of the pair of friction wheels is extremely short, the structure is simple, the size can be reduced, and the pallet can be taken in and out at high speed and noise can be reduced. Moreover, it is not necessary to attach a support rail for supporting the transfer device to each garage as in the conventional case,
The manufacturing is easy, and the manufacturing cost can be significantly reduced.

[Brief description 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 device to which the device of the present invention is applied, FIG. 3 is its front sectional view, and FIG. FIG. 5 is a schematic front view of the lifter, FIG. 5 is a plan view of a truck equipped with the device of the present invention, FIG. 6 is a front view of a truck on which a pallet is placed, and FIG. 7 is a partial sectional front view of the device of the present invention. FIG. 8 is a right side view of the device of the present invention, and FIG. 9 is an explanatory view showing a state in which the friction wheel is held at an intermediate position between the forward end position and the backward end position. 10 to 17 show the multi-level parking apparatus of the prior application proposed by the present applicant, FIGS. 10 and 11 are front and side views of the multi-level parking apparatus, and FIG. 12 is a plan view of the pallet. Figure, first
13 and 14 are an enlarged front view and a plan view of an essential part of a lifting platform equipped with a conventional pallet transfer device, and FIG. 15 (a).
(B) is a schematic view for explaining the operation of the telescopic arm,
FIG. 16 is an enlarged side view of the engagement device, and FIG. 17 is a transverse sectional view of FIG. (A) …… Automobile, (31) …… Construction, (32) …… Garbage, (37) …… Pallet, (39) …… Guide plate, (41) …… Lifter, (51a) (51b)… … Transfer device, (54) …… Movement stand, (55) (55 ′) (58) (58 ′) …… Axis, (56) (56 ′) …… Support arm, (57) (57 ′)… Friction wheel, (64) first drive mechanism, (73) second drive mechanism.

Claims (1)

[Claims] 1. A transfer device in which a lifter is vertically movable along a structure in which a garage is formed in multiple stages, and a pallet on which an automobile is mounted is transferred to the lifter between the lifter and the garage of the structure. In the multi-level parking apparatus having the above-mentioned, the transfer device is movable on a lifter so as to be linearly reciprocally movable with respect to the garage, and rotatable on both sides symmetrically on the movable base via a pivot. A pair of support arms that are pivotally supported toward the garage substantially parallel to each other and are always urged inward toward each other, and the tip ends of the support arms are pivotable via a pivot shaft, and A pair of friction wheels that are supported in a horizontal posture so that the strip-shaped guide plates fixed to the lower surface of the pallet can be held from both sides by utilizing the inward urging force acting on the support arms. Equipped on the above-mentioned moving stand, and rotates the friction wheel forward and backward. And a second drive mechanism that is arranged at a fixed position on the lifter and that linearly reciprocates the moving table with respect to the garage, and holds the guide plate on the lower surface of the pallet. A pallet transfer device in a multilevel parking device, wherein the friction wheel is moved back and forth while being rotated by the first and second drive mechanisms.