JPH0311316Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement of a vertical pallet feeding mechanism in a horizontal circulation type parking facility called a horizontal circulation type mechanical parking facility.

(Prior Art) In general, the above-mentioned horizontal circulation type parking equipment places a plurality of vehicle loading pallets on a vertical and horizontal transfer path consisting of two vertical and horizontal rows arranged in a rectangular shape so that two opposite corners are empty spaces. They are arranged and moved vertically and horizontally one pitch at a time, as if circulating.

Conventionally, in this parking facility, the vertical conveyance mechanism for the pallet P has a main part separated from the front and rear of the vertical conveyance path 1, as shown in FIGS. 5 and 6, respectively.
Arrange the front and rear sprockets 2 and 2 for the right 1 set,
Two endless chains 3, one on the left and one on the right, are wound between the front and rear sprockets 2, 2 corresponding to the front and back, and a plurality of mounting brackets 4 are attached to the endless chains 3, corresponding to the vertical feed pitches of the pallet P. A vertical feed rail 5 is installed horizontally between the left and right mounting brackets 4, 4, and a guide roller assembly 6 is fixedly installed on the left and right sides of each vertical feed rail 5. A guide rail 7 is laid at least along the upper moving path, and the endless chain 3
When the vertical feed rail 5 moves horizontally along the upper movement path with the circulation of When the movement is stopped, the end of the vertical feed rail 5 is closely connected to the end of the traverse rail laid on the lateral transfer path.

Further, each of the aforementioned mounting brackets 4 also serves as one set of link plates of the endless chain 3, and the chain roller pins 3b, 3b of the adjacent link plates 3a, 3a.
It consists of shaped plates 4a, 4a which are pivotally connected to the vertical feed rail 5, and a horizontal plate 4 which is fixed to the lower surface of the vertical feed rail 5 and bolted to the upper horizontal protruding surface _4a1 of the plate 4a, and the horizontal plate 4 is endless. The guide roller assembly 6 extends perpendicularly to the direction in which the chain 3 extends, and is attached to the lower surface of the end thereof.

(Problems to be solved by the invention) By the way, one of the design issues required of the above-mentioned vertical feed mechanism in this type of parking equipment is that the endless chain 3, the vertical feed rail 5, the guide roller assembly 6, etc. The problem is how to keep the vibration and noise associated with circulation to a minimum. Especially vibration/
The source of the noise is the reversed portion of the front and rear sprockets 2, 2. That is, in FIG. 5, when rotating around the sprocket 2 in a counterclockwise direction, the axial center Q of the leading guide roller 8 reaches a position directly above the axial center of the sprocket 2, as shown as a trajectory A. It reaches the highest position at A ₁ , and begins to descend from this position, and at position A ₂ , where the trailing side chain roller pin 3b reaches right above the axis of the sprocket 2, the leading side guide roller 8 rests on the guide rail 7, and reaches this position. Transition to horizontal orbit from A ₂ . In the case of the vertical feed mechanism configured as described above, since the mounting bracket 4 is pivotally mounted at one pitch of the chain roller pin, the reversal/horizontal transition period, that is, the horizontal distance L between the positions A ₁ and A ₂ is short, and the height Distance H is long. Therefore, the impact when the leading guide roller 8 comes into contact with the guide rail 7 is large, and the vibration and noise are accordingly large.

(Means for solving the problem) The mounting bracket of the vertical feed mechanism according to the present invention is supported at two places in the front and back of the chain roller pin with a distance of at least 2 pitches, and one of the supporting parts is attached to the endless chain. The other support part is characterized in that the extension part of the chain roller pin is loosely fitted into an elongated hole formed in the front-rear direction.

(Function) As described above, the mounting bracket for the endless chain is supported by at least two pitches of the chain roller pin, so that the guide roller assembly is reversed at the sprocket and transferred to the upper horizontal track. /In the horizontal transition period, the horizontal distance is longer and the height distance is shorter than in the conventional one. Therefore, the impact when the leading guide roller rests on the guide rail that regulates the horizontal track is softened, and vibration and noise are thereby significantly reduced.

(Example) Hereinafter, a detailed description will be given based on the example shown in FIGS. 1 to 3. For convenience of explanation, the left and right in FIG. 1 will be referred to as "left" and "right", and the left and right in FIGS. 2 and 3 will be referred to as "front" and "rear".

10a, 10b and 11a, 11b are horizontal transfer paths and vertical transfer paths formed in rectangular shapes parallel to each other, and 12a, 12b are the horizontal transfer paths 10a, 1.
These are two transverse rails each fixedly arranged in parallel on 0b.

Reference numeral 13 denotes a pallet to be mounted on a vehicle, and when the circulating movement is stopped, the horizontal transfer path 10 is arranged diagonally so that an empty space is created in both vertical transfer paths 11a and 11b.
a, 10b and vertical transfer paths 11a, 11b.
Male and female connecting fittings 13a are individually arranged and fixed to the front and rear of the left and right sides to connect the pallets to each other in the horizontal direction, and also to enable the pallets to engage and disengage from each other in the vertical direction.

Furthermore, the pallet 13 has lower left, right, front and
Later, a wheel 13b is pivotally supported, and the wheel 13b is engaged and supported on the transverse rails 12a, 12b.

Reference numeral 14 denotes a lateral transport mechanism provided in connection with the lateral transport paths 10a and 10b, and has the following configuration. 15
a and 15b are swing links whose centers are horizontally rotatably supported on the floor near the inner side of the center of the horizontal transfer paths 10a and 10b, and have a length approximately equal to the width of the pallet 13; Push rollers 16a and 16b are pivotally attached to the pallet 13, and the push rollers are disposed so as to be able to fit in and out of a guide groove 13c provided on the lower right side of the pallet 13 in the front-rear direction. 17 are both lateral transfer paths 10a, 10
A reversible motor with a speed reducer and a brake installed on the floor between the spaces B extends the transmission rotating shaft 18 in the front-rear direction, and has oppositely threaded worms 19a and 19b at both ends.
are fixed, and the worms 19a, 19b are always meshed with worm gears 20a, 20b which are fixed coaxially with the center axes of the swing links 15a, 15b, respectively. Thus, by driving the reversible motor 17, the transmission rotation shaft 18, the worms 19a, 19
b, the swing links 15a and 15b swing in opposite directions via the worm gears 20a and 20b;
With this rotation, each of the pushing rollers 16a and 16b engages with the guide groove 13c of the pallet 13 while moving the pallet 13 of each of the horizontal transfer paths 10a and 10b.
The groups are fed together in opposite directions.

21a and 21b are the vertical transfer paths 11a and 11b.
Since the vertical feeding mechanism 21a is provided in connection with the vertical feeding mechanism 21a and has the same left-right symmetrical structure, only the left vertical feeding mechanism 21a will be described below.

Reference numerals 22a and 22b are rotating shafts that are supported on the front and rear floors of the vertical transfer path 11a so as to be rotatable horizontally on the left and right by suitable bearings (not shown).
Two front and rear sprockets 23a, 23b are fixed to each of the sprockets 23a, 23b spaced apart from each other on the left and right sides, and two endless chains 24, 24 on the left and right sides are wound between the sprockets 23a, 23b corresponding to the front and rear. A reversible motor 25 with a speed reducer and a brake is connected to the right extended end of the rotating shaft 22a, and the motor 25 drives two endless chains via the rotating shafts 22a, 22b and front and rear sprockets 23a, 23b. 24 are circulated synchronously.

26a and 26b are the two endless chains 24,
A total of 4 sets of vertical feed rails, 1 set of 2 rails arranged in parallel in front and back so as to extend horizontally between 24 and 24, and corresponding vertical feed rails 2 of adjacent sets.
The distances between 6a and 26a and between 26b and 26b are set equal to the vertical feeding pitch of the pallet 13, that is, the distance between the front transverse rails 12a and 12b (or the distance between the rear transverse rails 12a and 12b).

Next, the means for attaching each of the vertical feed rails 26a, 26b to the endless chain 24 and the accompanying guide means will be explained based on FIGS. 2 and 3.

Reference numeral 27 denotes a mounting bracket attached to each endless chain 24 corresponding to the vertical feed pitch, and consists of a pair of left and right mounting plates 27a, 27b. It is arranged on both the left and right sides, and has outer right-angled horizontal parts 27a ₁ and 27b ₁ at the top, and the front part of the vertical plane is rotatably connected by a special first long chain roller pin 24b ₁ . Recess 27 on the inner side of the part
a ₂ , 27b ₂ to avoid contact with the end of the ordinary short chain roller pin 24b ₂ located at the first pitch rearward from the long chain roller pin 24b ₁ , and the rear part has elongated holes 27a ₃ , _27b3 , and a special second long chain roller pin _24b3 provided at the second rear pitch from the long chain roller pin _24b1 is loosely fitted into the elongated holes _27a3 , _27b3 . . Reference numeral 28 denotes horizontal brackets elongated in the left-right direction that are fixed to the lower left and right surfaces of the vertical feed rails 26a and 26b, and are horizontal brackets that are elongated in the left-right direction.
b _1A shallow recess 27 cut through the top surface from side to side
Fit the lower part into a ₁₁ and 27b ₁₁ and tighten the two front and rear bolts 29a and 29b to the outer right angle horizontal part 27a ₁ ,
It is fixed integrally with 27b ₁ .

Reference numeral 30 denotes a guide roller assembly which is fixed near the left and right ends of each of the vertical feed rails 26a, 26b via the horizontal brackets 28 of each of the mounting brackets 27, and has the following construction. That is, in FIGS. 2 and 3, 31a and 31b are a pair of vertical support plates that are spaced apart from side to side and parallel to each other in the front and back direction, and shallow recesses 31a ₁ and 31b ₁ are cut in the upper center surface of the plates, and the horizontal support plates 31a and 31b are parallel to each other. The right lower surface of the bracket 28 is connected to the recesses 31a ₁ and 31b ₁
It is fitted and welded. The vertical support plate 31
a and 31b extend diagonally upward in the front and back direction at the front and rear portions, and between the respective extension portions 31a ₂ and 31b ₂ and 31
Front and rear guide rollers 32 are installed between a ₃ and 31b ₃ respectively.
a and 32b are pivoted.

33 are upper and lower parts laid outside each of the endless chains 24 along the horizontal movement path in the longitudinal direction of the upper and lower parts;
With a total of four guide rails on the left and right, each of the guide roller assemblies 3 is
0 front and rear guide rollers 32a and 32b are placed and engaged and roll to horizontally guide each vertical feed rail 26a and 26b.

For example, in the left vertical transfer path 11a, the motor 25 drives the two endless chains 24 in the same direction and at the same speed to one of the vertical feed rails 26b.
When the vertical feed rail 26b and the left and right guide roller assemblies 30 that support it are moved by the pitch, the front or rear sprocket 2
3a and 23b are integrally reversed. Now, in FIG. 2, if the rotation around the rear sprocket 23b is reversed counterclockwise, the axial center Q' of the leading side guide roller 32a will be directly above the axial center of the sprocket 23b, as shown by the trajectory A'. The reached position A ₁ ' is the highest position, and from this position it begins to descend, and the second long chain roller pin 24b ₃ on the trailing side
At a position _A2 ' where the leading roller 32a reaches a position directly above the axis of the rear sprocket 23b, the leading guide roller 32a rests on the upper guide rail 33, and from this position A2' it shifts to a horizontal trajectory. During this reversal, the mounting bracket 2
The endless chain 24 of 7 parts is the rear sprocket 23b
The link plate 24a is bent in an articulated manner to engage with the first and second long chain roller pins 2.
The straight line distance between 4b ₁ and 24b ₃ becomes slightly shorter, and the shortening is absorbed by the elongated holes 27a ₃ and 27b ₃ .

Therefore, the diameter and the distance between the axes of the guide rollers 32a and 32b, and the height from the line connecting the axes of the first and second long chain roller pins 24b ₁ and 24b ₃ to the axes of the guide rollers 32a and 32b. The distance is the diameter and the distance between the axes of the guide rollers 8, 8 in the prior art described above, and the height distance from the line connecting the axes of the chain roller pins 3b, 3b to the axes of the guide rollers 8, 8, respectively. When compared as being equal to , the horizontal distance between the positions A ₁ ′ and A ₂ ′ is
L′ (i.e., the reversal/horizontal transition period) is longer than the conventional horizontal distance L, and the height distance of positions A ₁ ′, A ₂ ′ is
H' is shorter than the conventional height distance H, and the radius of the reversal locus A' is smaller than the radius of the conventional reversal locus A. (That is, the circumferential speed of the guide roller 32a is slower than that of the conventional guide roller 8). This means that the leading side guide roller 32a is
3. This means that the impact when it comes into contact with the top is smaller than before, and vibration and noise are also reduced accordingly.

In the above-mentioned embodiment, the supporting interval of the mounting bracket 27 with respect to the endless chain 24 was two pitches of chain roller pins, but as shown in FIG. 4, this supporting interval may be three pitches of chain roller pins. That is, in FIG. 4, 123 is a sprocket, 124 is an endless chain, 126 is a vertical feed rail, 127 is a mounting bracket, 127a is a mounting plate, 128 is a horizontal bracket, 130 is a guide roller assembly, and 132a, 132b are guide rollers. It is.

The mounting bracket 127 has a pair of mounting plates 127a arranged on both left and right sides of the endless chain 126, and two long chain roller pins 124b ₁ at the front and rear, separated by three pitches of the chain roller pins.
Link plates 124a, 124 by 124b ₃
It is pivotally connected to a, but the long chain roller pin 1 on the rear side
24b ₃ is the elongated hole 1 cut in the mounting plate 127a.
_27b3 , and the ends of the two short chain roller pins _124b2 located between the long chain roller pins _124b1 and _124b3 do not contact the mounting plate 127a. . Therefore, when the mounting bracket 127 portion is reversed around the sprocket 123b, the mounting bracket 1
27 portions of the link plate 124a are bent into an articulated shape, and the long chain roller pins 124b ₁ , 124
The straight line distance between b ₃ becomes slightly shorter, and the shortening is absorbed by the elongated hole 127b ₃ . Comparing the horizontal distance L'' between the positions A ₁ '' and A ₂ '' and the height distance H'' as the reversal/horizontal transition period in this embodiment with those of the prior art shown in FIG. 5 (however, FIG. 5), L'' is almost equal to the conventional L, but H'' is about 1/2 of the conventional H, and the leading guide roller 132a is on the guide rail 133. It can be seen that the impact upon contact is significantly reduced compared to the conventional case.

(Effects of the invention) As detailed above, according to the vertical feeding mechanism of the horizontal circulation type parking equipment according to the invention, the mounting bracket for attaching the vertical feeding rail and the guide roller assembly to the endless chain is at least the chain roller pin. It is supported at two places in the front and back separated by a distance of 2 pitches or more, one of these supports is an immovable pivot point for the endless chain, and the other support is an extension of the chain roller pin in a long hole formed in the front and back direction. Because the leading guide roller of the guide roller assembly moves from reversing to horizontal movement, the horizontal distance increases, and the height at which the leading guide roller descends and lands on the guide rail during this period increases. As the distance is shortened and the circumferential speed of the guide roller is reduced, the impact of the guide roller hitting the guide rail is reduced, and vibration and noise are also significantly reduced.

[Brief explanation of the drawing]

Figures 1 to 4 all show examples of the present invention; Figure 1 is an overall plan view of the entire parking facility;
3 is an enlarged bottom view of FIG. 2 as viewed from the arrow .about., and FIG. 4 is a view corresponding to FIG. 2 showing another embodiment. 5 and 6 show a conventional vertical feed mechanism. FIG. 5 is a side view of a main part corresponding to FIG. 2, and FIG. 6 is an enlarged bottom view taken in the direction of arrows ˜ of FIG. 5. In the figure, 10a, 10b are horizontal transfer paths, 11a, 1
1b is a vertical transfer path, 13 is a pallet, 13b is a wheel, 21a, 21b is a vertical feeding mechanism, 23a, 23
b is front and rear sprocket, 24 is endless chain, 2
4a is a link plate, 24b ₁ and 24b ₃ are long chain roller pins, 26a and 26b are vertical feed rails, 27 is a mounting bracket, 27a and 27b are mounting plates, 30 is a guide roller assembly, 31a and 31
b is a vertical support plate, 32a and 32b are front and rear guide rollers, and 33 is a guide rail.

Claims (1)

[Scope of utility model registration request] A plurality of pallets for mounting on vehicles are arranged on a vertical and horizontal transfer path consisting of two vertical and horizontal rows arranged in a rectangular shape so that two opposite corners are empty spaces, and the pallets are alternately moved vertically and horizontally to one pitch and circulated. It is a horizontal circulation type parking facility, in which the vertical pallet feeding mechanism is provided with front and rear sprockets for each set of left and right, which are spaced apart from each other in the front and rear of the vertical transfer path, and Before·
Two endless chains, one on the left and one on the right, wrapped between the rear sprockets, a plurality of mounting brackets attached to the two endless chains corresponding to vertical feed pitches, and a horizontal chain installed between the mounting brackets corresponding to the left and right sides. A vertical feed rail, a guide roller assembly fixed to the left and right sides of the vertical feed rail, and a guide roller assembly installed along at least an upper movement path of each of the endless chains, and the vertical feed rail moves along the upper movement path. At this time, the guide roller of the guide roller assembly is engaged and supported to guide the horizontal movement of the vertical feed rail, and when the movement is stopped, the end of the vertical feed rail is closely connected to the end of the traverse rail to be laid on the lateral transfer path. In the guide rail, each of the mounting brackets is connected to the front and rear of the chain roller pin at a distance of at least two pitches or more.
One of the supporting parts is an immovable pivot point for the endless chain, and the other supporting part is loosely engaged with the extension part of the chain roller pin in an elongated hole formed in the front-rear direction. A vertical feed mechanism for horizontal circulation parking equipment featuring: