JP4205422B2 - Load delivery device in a hanging conveyor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a suspending and transporting apparatus in which a trolley travels along a traveling rail disposed at a high place in a factory or a warehouse, and the load is suspended and transported by the trolley. The present invention relates to a load delivery device for supporting or removing from a trolley.
[0002]
[Prior art]
In this type of conventional apparatus, a cargo bed is supported by a trolley (cart) that runs along a running rail so that the cargo bed can be raised and lowered, and a motor-driven roller conveyor is provided on the cargo bed. (For example, see Patent Document 1).
[0003]
Also, the lifting mechanism provided at the bottom of the trolley (traveling carriage) suspends the handling mechanism so that it can be raised and lowered with a pair of belts, and the pair of hand members in the handling mechanism are engaged with the upper peripheral edge of the bucket as a load. In some cases, the buckets can be separated by hanging them together or by opening both hand members (see, for example, Patent Document 2).
[0004]
[Patent Document 1]
Japanese Patent No. 3030529 (FIGS. 4 to 7).
[Patent Document 2]
JP-A-5-139540 (FIGS. 2 to 6).
[0005]
[Problems to be solved by the invention]
However, in the former, since a roller conveyor or the like is placed on the loading platform, the weight of the loading platform is increased, the driving force for traveling the trolley must be increased, the structure is complicated, and the entire apparatus is Cost is high.
In the latter (also the former), a lifting means and a handling mechanism must be provided for each trolley, and the unit price per trolley is expensive, and the control of the handling mechanism and the transmission of commands to each handling mechanism. Becomes complicated.
[0006]
In view of the above-described problems of the conventional technology, the present invention aims to simplify the structure of a carrier and the like mounted on a trolley and reduce the weight, and to deliver a load safely and reliably. An object of the present invention is to provide a load delivery device in a suspended conveying device.
[0007]
[Means for Solving the Problems]
According to the present invention, the above problem is solved as follows.
(1) A carrier is suspended from a trolley suspended on a traveling rail and driven along the traveling rail by a driving means, and a hook-shaped engaging portion at the lower end is engaged with a load on the carrier. A hook that engages with a stop and can suspend a load is pivotally mounted so as to be pivotable between a locking position that faces substantially downward and a release position that can be detached from the locking section of the load, and the hook An inclined edge is provided at the lower end of the lower end of the load so as to slide from the locking position of the load so that the hook is rotated from the locking position to the releasing position by descending from substantially above the locking position of the load. The fixed body disposed at the load delivery position is provided with lifting means for raising and lowering the carrier and release means for rotating the hook to the release position.
[0008]
(2) In the above item ( 1 ) , the release means is provided on a member that is integrated with a part of the traveling rail that can be moved up and down by the lifting means.
[0009]
(3) A carrier is suspended from a trolley suspended on a traveling rail and driven along the traveling rail by a driving means, and a hook-shaped engaging portion at the lower end is engaged with a load on the carrier. A hook that engages with a stop and can suspend a load is pivotally mounted so as to be pivotable between a locking position that faces substantially downward and a release position that can be detached from the locking section of the load, and the hook An inclined edge is provided at the lower end of the lower end of the load so as to slide from the locking position of the load so that the hook is rotated from the locking position to the releasing position by descending from substantially above the locking position of the load. And a lifting / lowering means for raising and lowering the carrier at a load delivery position, and a member integrated with a part of the traveling rail that is lifted and lowered by the lifting / lowering means , and turning the hook to the release position. And release means.
[0010]
(4) In any one of the above items (1) to ( 3 ) , the release means can abut against a part of the hook during operation to push the hook to the release position. And an operating member that is retracted to a retracted position that does not hinder the traveling of the carrier and the hook that are suspended thereon, and an actuator that moves the operating member to the operating position and the retracted position.
[0011]
(5) A carrier is suspended from a trolley suspended on the traveling rail and driven along the traveling rail by the driving means, and a hook-shaped engaging portion at the lower end is suspended from the carrier. A hook that engages with a stop and can suspend a load is pivotally mounted so as to be pivotable between a locking position that faces substantially downward and a release position that can be detached from the locking section of the load, and the hook An inclined edge is provided at the lower end of the lower end of the load so as to slide from the locking position of the load so that the hook is rotated from the locking position to the releasing position by descending from substantially above the locking position of the load. Elevating means for raising and lowering the carrier at the load delivery position and release means for rotating the hook to the release position, and the release means abuts a part of the hook during operation, Can be pushed to the release position. Lee, as well as it an actuating member which is adapted to be retracted to the retracted position where it does not interfere with the running of Tsu支been carrier and hooks, and that an actuator for moving the actuating member in the operative position and the retracted position.
[0012]
(6) In any one of the above items (1) to ( 5 ) , the lifting means lifts and lowers the carrier by lifting and lowering a part of the traveling rail on which the trolley is suspended.
[0013]
(7) In any one of the above items (1) to ( 6 ) , the drive means is arranged so as to be rotatable in parallel with the traveling rail and around the central axis, and rotation for rotating the drive shaft. And a plurality of wheels for transmitting a driving force that are provided on the trolley and are pressed against the outer peripheral surface of the drive shaft so as to roll in the spiral direction of the outer peripheral surface. And a part of the drive shaft that is parallel to it and a rotating means that rotates only a part of the drive shaft are moved up and down by the lifting means.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
1 and 2 show an embodiment of the present invention.
[0015]
The suspension transfer device is almost horizontal (sometimes uphill or downhill) at a height higher than the height of a person in a factory, warehouse, etc., and forms a closed loop as a whole in plan view. A pair of traveling rails (1) (shown in phantom lines in FIG. 1) arranged parallel to each other at a required interval, and two wheels before and after rolling on each traveling rail (1) ( 2) A pair of suspension supports (2) hanging from the two trolleys (3) and (3) through the trolley (3) on the side and between the traveling rails (1) and (1) 4) A carrier (5) suspended by (4) and a driving means (6) for driving the trolley (3) are provided.
[0016]
The drive means (6) includes a drive shaft (7) disposed in parallel with both the traveling rails (1) and (1) at a position immediately above the gap between the both traveling rails (1) and (1), and the drive shaft ( A rotating means (8) for rotating 7) in a required direction, and a wheel mount (9) mounted on the upper surface of each trolley (3) so as to be slightly movable up and down and always spring-biased upward. Four driving force transmission wheels (10) mounted on the wheel mount (9) and pressed against the outer peripheral surface of the drive shaft (7) so as to roll in the spiral direction of the outer peripheral surface. And.
[0017]
1 and 2 show only the rotating means (8) for the liftable drive shaft (7a) in the load delivery device (11), and other stationary drive shafts (shown by imaginary lines). The rotating means for 7) is not shown.
[0018]
At the load delivery position (A) determined at a desired position in the longitudinal direction of the traveling rails (1) and (1) forming a closed loop, an elevating type traveling rail (part of the traveling rails (1) and (1)) ( 1a) (1a) and the above-described liftable drive shaft (7a) which is a part of the drive shaft (7) are separated from the other parts and supported by the lifting frame (12) together with the rotating means (8). Has been.
[0019]
The elevating frame (12) operates in synchronization with each other provided on the beam (fixed body) (13) of the building disposed above the drive shaft (7) (7a) at the load delivery position (A). The upper and lower ends are fixed to the lower ends of the piston rods (15) and (15) facing the vertical direction in a pair of left and right air cylinder devices (elevating means) (14) (14), and the drive shaft (7a ) Are rotatably supported, and the front and rear traveling rails (1a) and (1a) are supported at the lower ends of both side frames (16) and (16) that are downwardly U-shaped in a side view.
[0020]
As shown in FIG. 1 and FIG. 4 (a), the elevating frame (12) is driven by the operation of the air cylinder device (14) (14), and the traveling rail (1a) (1a) and the drive shaft (7a) are others. As shown in FIG. 4 (c), the traveling rods (1) and (1) and the drive shaft (7) of the vehicle are moved in a straight line, and as shown in FIG. It can be moved up and down to the lowered position.
[0021]
The carrier (5) is provided between the middle and lower end portions of the side frames (17) and (17) facing downward in a U-shape with the upper ends fixed to the lower ends of the left and right suspension supports (4) and (4). , Which consists of the two sides of the upper and lower ridges (18) and (19), which have different lengths, fixed to both ends of the lower ridge (19) that is longer than the upper ridge (18) An intermediate portion of the hook (20) facing upward and downward having an inward hook-shaped engagement portion (20a) at the lower end is pivotally attached with a shaft (21) facing forward and backward.
[0022]
More specifically, as shown in FIG. 2, the hook (20) has a front hook piece (22) that is long in the vertical direction, and a rear portion that has the same shape as a part cut away from the pivot portion. The hook pieces (23) and the front and rear end portions are welded to the inner edges of the hook pieces (22) and (23), and a U-shaped notch (24) in the bottom view is provided in the middle portion in the front-rear direction. The receiving piece (25) is substantially J-shaped when viewed from the front and back, and includes two reinforcing pieces (26) welded to two intermediate portions on the back of the receiving piece (25).
[0023]
At each hook (20), more specifically, at the lower end of the front and rear hook pieces (22) and (23), an inclined edge (27) is formed which inclines backward inward and upward.
[0024]
As shown by the solid line in FIG. 1, each hook (20) normally faces directly under its own weight, and the hook-shaped engagement portion (20 a) is a load locking portion, that is, a box cart (28 in this example). The box cart (28) is engaged with the upper horizontal rods (29) (see FIGS. 4 and 5) on both sides of the box cart (28). 1), the lower end opens outward in the left-right direction as shown by an imaginary line in FIG. 1, and can be rotated to a release position where it can be detached from the upper horizontal rod (29).
[0025]
The release means (30) is pivoted with a pair of support plates (31) (31) fixed to both sides of the front surface of the front traveling rail (1a) , and each support plate (31) having a longitudinal axis (32). The attached operation lever (operation member) (33) and the inner end of the cylinder (34) facing in the left-right direction are pivotally attached to the support plate (31) with a shaft (35) facing in the front-rear direction, and the cylinder ( The tip of the piston rod (36) extending outward from the outer end of (34) is connected to the base end of the actuating lever (33), and the piston rod (36) advances and retreats from the cylinder (34). Thus, as shown by an imaginary line in FIG. 1, the operation lever (33) is directed downward and the upper end of the hook (20) is pushed to the release position, and the solid line in FIG. As shown in Fig. 2, the water is directed to the outside in the left-right direction, and the trolley (3) along the traveling rails (1) and (1a) and the carrier (5) and hook (20) mounted on the trolley (3) are not obstructed. It comprises an actuator (37) comprising an air cylinder device that can be rotated to a flat retracted position.
[0026]
As shown in FIGS. 1 to 3, the rotating means (8) includes a pulley (41) fixedly fitted to an output shaft (40) of a reduction gear (39) coupled to a motor (38), and a drive shaft (7a). The belt (43) is wound around an annular groove (42) provided on the outer peripheral surface of the substantially central portion. (44) is a tension pulley.
[0027]
When the motor (38) is operated, the belt (43) is run endlessly and the drive shaft (7a) is rotated in a required direction.
[0028]
The outer circumferential surface of the lower half of the belt (43) of the portion that is looped around the annular groove (42) and the outer circumferential surface of the drive shaft (7a) are substantially flush with each other, and thereby the wheel ( 10) falls into the annular groove (42) or rides on the outer peripheral surface of the belt (43) protruding from the annular groove (42) to prevent the running from becoming unsmooth.
[0029]
Next, the operation of this embodiment will be described.
A number of position detection sensors for detecting the arrival of the trolley (3) are provided on the traveling rail (1) (1a) or in the vicinity thereof. Based on the detected data, the trolley (3 ) Is performed, but illustration and detailed description thereof are omitted.
[0030]
As shown in FIG. 4 (a) (in FIG. 4 (a) to (d), the rotating means (8) and the releasing means (30) are omitted), the carrier (5) is suspended. The two trolleys (3) and (3) are positioned on the traveling rails (1a) and (1a) in the load delivery device (11) and the rotation of the drive shaft (7a) is stopped. When the piston rods (15) and (15) are lowered synchronously from the left and right air cylinder devices (14) and (14), together with the lifting frame (12),
The traveling rails (1a) (1a), a pair of trolleys (3) (3), a drive shaft (7a) and the like mounted thereon are lowered integrally.
[0031]
In the middle, as shown in FIG. 4 (b), the slanted edge (27) at the lower ends of the left and right hooks (20) (20), which are located directly below, that is, in the locking position, is the load delivery position. (A) on the floor surface (45), slidably touching the upper horizontal rods (29) on both sides of the box cart (28) disposed in the positioning frame (46) with the upper part expanded. The hooks (20) and (20) are pivoted so as to open to the left and right sides, and the hook-shaped engagement portions (20a) and (20a) of the hooks (20) and (20) When passing, as shown in FIG. 4 (c), both hooks (20) and (20) return to their locked positions due to their own weights, and the hook-shaped engaging portions (20a) are under the upper horizontal rods (29). Engage side.
[0032]
At this time, a vertical beam hanging from the middle part of the upper horizontal rod (29) on both sides of the box cart (28) in the notch (24) (see FIG. 2) of the receiving piece (25) in the hook (20). By engaging the upper end of the box cart (not shown), it is possible to prevent the positional deviation of the box cart (28) in the front-rear direction with respect to the carrier (5).
[0033]
The vertical bars are the same as the four vertical bars (47a) forming the lattice (47) appearing on the front surface of the box cart (28) shown in FIG. ) It is good to use the central one of the three vertical bars provided on both side surfaces.
[0034]
(47b) are two horizontal rails forming the front grid (47).
[0035]
Next, when both the air cylinder devices (14) and (14) are operated so as to lift the piston rods (15) and (15) upward, as shown in FIG. 4 (d), together with the lifting frame (12) and the like. The box cart (28) is lifted with the upper horizontal hooks (29) and (29) locked to the left and right hooks (20) and (20) located at the locking position.
[0036]
After the elevating frame (12) reaches the raised position and stops, the rotating means (8) is operated to rotate the drive shaft (7a) and the other drive shafts (7) in the same direction. 3) (3) is made to travel to a desired place (not shown) along the traveling rail (1a) (1) with the box cart (28) suspended.
[0037]
In the same state as shown in FIG. 4 (d), the box cart (28) is suspended by two trolleys (3) and (3) and sent from another place to the load delivery position (A). When this happens, a position detection sensor (not shown) detects this, and the operation of the rotating means (8) is stopped, and the left and right trolleys (3), (3) are driven rails (1a) (1a ) Stopped on.
[0038]
Next, when the piston rods 15 and 15 are advanced from the air cylinder devices 14 and 14, the elevating frame 12 is lowered as shown in FIG. 4C, and the box cart 28 ) Is brought into contact with the floor within the positioning frame (46).
[0039]
In this state, as shown in FIG. 5 (9) (in FIG. 5 (a) to (c), the rotating means (8) is omitted), the actuators in the left and right release means (30) (37) is actuated to turn the actuating lever (33) to the actuated position, and at its tip, the hook (20) is pivoted to the release position to disengage from the upper horizontal rod (29).
[0040]
In this state, the air cylinder device (14) (14) is raised and the lifting frame (12) is raised as shown in FIG. 5 (b). When the lever (33) is returned to the retracted position (FIG. 5 (c)), the initial state shown in FIG. 4 (a) is obtained.
[0041]
In the above example, the load to be suspended is the box cart (28), but the load to be transported is not limited to this, and the upper end portion has a locking portion to which the hook (20) can be locked. Anything can be hung and transported.
[0042]
【The invention's effect】
The invention described in each claim can achieve the following effects.
Claims 1, 3 and 5 : A hook is pivotally attached to a carrier suspended by a trolley, and a load is suspended by the hook, or the hook is rotated to a release position by a release means, and is detached from the load. By doing so, the load can be delivered to the trolley quickly and reliably, and the structure of the carrier and the like mounted on the trolley can be simplified and reduced in weight.
[0043]
Claim 1: there is no need to provide an elevating unit release means to the carrier, it is possible to simplify the structure of the carrier, can be lightweight, have, since the trolley so that it is possible to travel at light force, energy saving Can be achieved.
[0044]
In addition, since the lifting means and the solution means are provided on the fixed body, they can be controlled easily, and the power supply and signal transmission are complicated as in the case where they are provided on the trolley or carrier that travels them. Can be eliminated.
[0045]
Claims 2 and 3 : The release means can be arranged in the load delivery device so as not to hinder the traveling of the trolley, etc., and can be moved up and down with the hook, and is not provided in the trolley or the carrier. Mu
[0046]
Claims 4 and 5 :
With the release means, the hook can be quickly moved to the release position in a timely manner, and at the same time, it can be prevented from obstructing the traveling of the trolley or the like.
[0047]
Claim 6 : Since the trolley can be lifted and lowered while maintaining the relationship with the traveling rail without performing a troublesome work such as removing the trolley from the traveling rail, the trolley is moved to the traveling rail after the lifting operation is completed. It is possible to drive along quickly.
[0048]
According to the seventh aspect of the present invention , since the driving means for traveling the trolley has such a configuration, it is not necessary to provide a heavy driving means such as a motor in the trolley itself, and the trolley can be reduced in weight and the trolley can be reduced in weight. Can be lifted and lowered while maintaining the relationship with the running rail and the drive shaft.
[Brief description of the drawings]
FIG. 1 is a front view of an embodiment of the present invention.
FIG. 2 is a side view of the same.
FIG. 3 is an enlarged longitudinal sectional side view taken along line III-III in FIG.
FIG. 4 is an operation explanatory diagram illustrating an operation at the time of receiving a load.
FIG. 5 is an operation explanatory diagram illustrating an operation at the time of unloading.
[Explanation of symbols]
(A) Delivery position
(1) (1a) Running rail
(2) Wheel
(3) Trolley
(4) Hanging support
(5) Carrier
(6) Driving means
(7) (7a) Drive shaft
(8) Rotating means
(9) Wheel mount
(10) Wheel
(11) Load delivery device
(12) Elevating frame
(13) Beam (fixed body)
(14) Air cylinder device (lifting means)
(15) Piston rod
(16) Side frame
(17) Side frame
(18) (19) Bubo
(20) Hook
(20a) Vertical engagement part
(21) axis
(22) (23) Hook piece
(24) Notch
(25) Receiving piece
(26) Reinforcing piece
(27) Inclined edge
(28) Box cart (load)
(29) Upper horizontal rod (locking part)
(30) Release means
(31) Support plate
(32) axis
(33) Actuating lever (actuating member)
(34) Cylinder
(35) axis
(36) Piston rod
(37) Actuator
(38) Motor
(39) Reducer
(40) Output shaft
(41) Pulley
(42) Annular groove
(43) Belt
(44) Tension pulley
(45) Floor surface
(46) Positioning frame
(47) Chair
(47a) Vertical rail
(47b) Horizontal rail

Claims (7)

A carrier is suspended from a trolley suspended on the traveling rail and driven along the traveling rail by the driving means, and a hook-shaped engagement portion at the lower end portion serves as a load locking portion on the carrier. The hook that can be engaged to support the load is pivotally attached to a locking position that faces substantially downward and a release position that can be detached from the locking portion of the load, and is attached to the lower end of the hook. An inclined edge is provided so that the hook is slidably brought into contact with the load locking portion by being lowered from directly above the load locking portion, and the hook is rotated from the locking position to the release position. A load delivery device in a hanging and conveying apparatus, wherein a fixed body disposed at a delivery position is provided with lifting means for raising and lowering the carrier and release means for rotating the hook to a release position. The releasing means, provided on the member forming a part integral with the running rail so as be moved up and down by elevating means, loading the transfer device in the conveying device hanging of claim 1, wherein. A carrier is suspended from a trolley suspended on the traveling rail and driven along the traveling rail by the driving means, and a hook-shaped engagement portion at the lower end portion serves as a load locking portion on the carrier. The hook that can be engaged to support the load is pivotally attached to a locking position that faces substantially downward and a release position that can be detached from the locking portion of the load, and is attached to the lower end of the hook. An inclined edge is provided so that the hook is slidably brought into contact with the load locking portion by being lowered from directly above the load locking portion, and the hook is rotated from the locking position to the release position. Elevating means for elevating and lowering the carrier at the delivery position ; and releasing means provided on a member integrated with a part of the traveling rail that is made to elevate and lower by the elevating means and rotating the hook to the release position; Hanging, characterized by providing Loading delivery device in the lower conveying device. The release means abuts against a part of the hook during operation, and can push the hook to the release position, and when it is not in operation, the retracting position does not prevent the trolley, the carrier suspended on the trolley, and the hook from traveling. The load delivery device in the hanging and conveying apparatus according to any one of claims 1 to 3, further comprising: an operating member that is retracted to an operating position; and an actuator that moves the operating member to an operating position and a retracted position. A carrier is suspended from a trolley suspended on the traveling rail and driven along the traveling rail by the driving means, and a hook-shaped engagement portion at the lower end portion serves as a load locking portion on the carrier. The hook that can be engaged to support the load is pivotally attached to a locking position that faces substantially downward and a release position that can be detached from the locking portion of the load, and is attached to the lower end of the hook. An inclined edge is provided so that the hook is slidably brought into contact with the load locking portion by being lowered from directly above the load locking portion, and the hook is rotated from the locking position to the release position. In the delivery position, there is provided lifting means for raising and lowering the carrier and release means for rotating the hook to the release position, and the release means abuts on a part of the hook during operation to bring the hook into the release position. Can be pushed, and when not in operation, the trolley And an actuating member which it was set to retract to the retracted position which does not interfere with the running of Tsu支been carrier and the hook, characterized in that it is assumed that an actuator for moving the actuating member in the operative position and the retracted position , A load delivery device in a hanging conveying device. The delivery of the load in the suspending and conveying apparatus according to any one of claims 1 to 5 , wherein the elevating means raises and lowers the carrier by raising and lowering a part of the traveling rail on which the trolley is suspended. apparatus. The drive means is disposed in parallel with the traveling rail and rotatable about the central axis, the rotation means for rotating the drive shaft, the trolley, and on the outer peripheral surface of the drive shaft. A plurality of wheels for transmitting a driving force pressed so as to roll in a spiral direction of the outer peripheral surface, a part of the traveling rail, a part of a drive shaft parallel to the traveling rail, and a part of the drive shaft The load delivery device in the hanging transfer device according to any one of claims 1 to 6 , wherein a rotating means for rotating only a part is raised and lowered by an elevating means.

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