JPH05162987A - Elevation transporting device - Google Patents

Abstract

PURPOSE:To increase the upper limit height of an elevator carriage (rail suspending-down frame). CONSTITUTION:An arch shaped frame 13 extending in cantilever form is continuously installed forwardly from the upper edge of a supporting pillar 3, and a guide gear wheel 16 which direction-changes a suspending-down cable 7 downward is axially supported in a downward projection state from the arch shaped frame 13, in the vicinity of the top edge of the arch shaped frame 13, and when an elevation carriage 5 rises to an upper rising limit position, a rail supending- down frame 9 approaches the underside of the arch shaped frame 13, and a part of the guide gear wheel 16 is freely fitted in the rail suspending-down frame 9. The carriage suspending-down edge 7b of the suspending-down calbe 7 which is suspended from the guide gear wheel 16 is connected at the position in the vicinity of the suspending-down rail 10 of the rail suspending-down frame 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting / conveying device generally called a drop lifter or a table lifter,
That is, the present invention relates to an elevating / conveying device used for elevating and lowering transportation means such as a transportation train from one side to another side of a traveling route having different levels, and for loading and unloading objects to be transported.

[0002]

2. Description of the Related Art As the above-mentioned lifting / conveying device, a lifting carriage which can be lifted up and down along a column and in which a rail hanging frame is continuously connected to the front in a cantilever manner is lifted by a hanging rope. However, in this type of lifting and lowering transport device, the carriage hanging lower end of the hanging rope is not the main body of the lifting and lowering carriage, but the rail hanging frame that is continuously provided from the lifting and lowering carriage. Is connected not only to the position near the suspension rail but also to stabilize the lifting stop position of the suspension rail on which the transportation train to be lifted and transferred is transferred, and also to support the rail suspension frame from the lifting carriage body. The required strength of the arm and frame for suspending rails that are connected to
It is preferable in that it can be reduced in size and weight.

However, if the above conditions are to be satisfied, a guide tooth wheel for turning the hanging rope downward is provided directly above the rail hanging frame when the lifting carriage is raised to the upper limit position. Must be placed,
This guide toothed wheel is a large toothed wheel having a relatively large diameter because it receives the entire weight of the lifting and lowering carriage side, and the guide toothed wheel is cantilevered forward from the upper end of the column. Since it is pivotally supported by the tip of the frame, the arm-shaped frame, which pivotally supports a large guide toothed wheel, is arranged directly above the rail suspension frame that has been raised to the upper limit position. ..

Therefore, when the height of the arm-shaped frame is limited by the ceiling height, the ascending limit position of the rail suspension frame is kept low, which may make it impossible to secure the required lifting / conveying stroke. was there.
In such a case, the carriage hanging lower end of the hanging rope is connected to a position close to the lifting carriage body, such as the base of an arm that is diagonally upwardly connected from the lifting carriage body to support the rail hanging frame. I have to
It was not possible to achieve the intended purpose.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and its features will be shown by the reference numerals of the embodiments described later. In the lifting / lowering transport device of the present invention, the lifting / lowering carriage 5 which can be lifted / lowered along the columns 3 and 4 and in which the rail hanging frame 9 is continuously connected to the front in a cantilever manner is vertically driven by the hanging rope 7. In the elevating / conveying apparatus, an arm-shaped frame 13 extending in a cantilever manner forward from the upper ends of the columns 3 and 4 is continuously provided, and the suspension rope 7 is turned downward near the tip of the arm-shaped frame 13. The guide toothed wheel 16 is pivotally supported so as to project downward from the arm-shaped frame 13, and when the lift carriage 5 is lifted to a lift limit position, the rail suspension frame 9 is positioned below the arm-shaped frame 13. Close to the side, in front Some of the leading tooth wheel 16 so as to loosely fit the lower frame 9 suspended the rail, the guide tooth wheel 1
Carriage hanging lower end 7b of the hanging rope 7 hanging from 6
The suspension rail 1 in the rail suspension frame 9
It is characterized in that it is connected to a position near 0.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the accompanying drawings. The lifting and lowering transfer device shown in FIG. 1 has transfer guide rails 1a and 1b installed at a predetermined height above the floor. It is used to transfer a guided electric train (not shown) that travels while being guided to a loading / unloading level of an object to be carried, or onto another carrying guide rail 1c at a low level. Two columns 3 and 4 standing on a base 2 installed on the floor, one elevating carriage 5 that can be elevated along the columns 3 and 4, and the columns 3 and 4.
It is composed of a counterweight 6 which can be raised and lowered between 4 and a hanging rope (chain or the like) 7 which suspends the raising and lowering carriage 5 and the counterweight 6 in a fishing bottle type and moves them up and down in opposite directions.

A rail suspension frame 9 is connected to the elevating carriage 5 via an arm 8 which is cantilevered obliquely upward and upward, and the elevating carriage 5 is elevated below the frame 9. A suspension rail 10 that is connected to the transport guide rails 1a and 1b when in the limit position and that is connected to the transport guide rail 1c when in the descending limit position is installed on the suspension rail 10. The transfer train that has been transferred can be lifted and lowered by raising and lowering the raising and lowering carriage 5.

A pedestal 11 is mounted and fixed between the upper ends of the columns 3 and 4, and a driving means 12 for driving the hanging rope 7 is mounted on the pedestal 11, and further from the front end of the pedestal 11, An arm-shaped frame 13 extending in a cantilever manner is continuously provided above the rail suspension frame 9. As shown in FIGS. 2 and 3, the drive means 12 includes a pedestal 11
It is composed of a drive toothed wheel 14 axially supported on the upper side and a motor 15 with a speed reducer for rotationally driving the drive toothed wheel 14 in arbitrary forward and reverse directions. A weight hanging lower end 7a of the hanging rope 7 hanging from a guide tooth wheel 16 axially supported near the tip of the arm-shaped frame 13 and hanging from the drive tooth wheel 14 is connected to an upper end portion of the counterweight 6. , Hanging rope 7 hanging from the guide tooth ring 16
The carriage hanging lower end 7b is connected to the rail hanging frame 9.

The rail suspension frame 9 has a rectangular frame-like title in a plan view, and includes a pair of front and rear long-side frame members 17 parallel to the suspension rail 10 at both ends and a plurality of short-side intermediate sides. Directional frame members 18, 18a, 18b
The suspension rail 10 is suspended directly below the center position in the short side direction thereof via a plurality of rail suspension brackets 19. Thus, as shown in FIGS. 4 and 5, the guide toothed wheel 16 includes a pair of left and right side frames 13a, 13 that constitute the arm-shaped frame 13.
With the bearing member 20 and the horizontal support shaft 21 fixed to b so as to project downward, in a state in which the lower half portion does not project above the arm-shaped frame 13 but only projects downward. , The both side frames 13a, 13b are pivotally supported, and the guide tooth ring 16 is such that the rail suspension frame 9 (elevation carriage 5) is raised to the ascent limit position as shown in FIGS. 1 and 3B. 4 and FIG. 5, when it comes close to directly below the arm-shaped frame 13, the part protruding downward from the arm-shaped frame 13 (the lower half portion of the guide tooth ring 16 and the bearing member 20). Are positioned so as to be loosely fitted between the long side frame members 17 at the front and rear of the rail suspension frame 9.

As shown in FIGS. 4 and 5, among the frame members in the short side direction constituting the frame 9 for suspending rails, the frame members are erected so as to be positioned on both left and right sides of the loose fitting space such as the guide toothed wheel 16 or the like. Pair of short side direction frame members 18
a and 18b have a pair of brackets 22 extending downward.
A chain connecting beam member 23 is provided via a and 22b at a position where it does not interfere with traveling of a transportation train or the like traveling on the suspension rail 10. And this chain connecting beam 2
Connecting members 27a, 27b connected to the ends of the two chains 26a, 26b forming the suspension rope 7 can be rocked back and forth on the upper part 3 via a bearing member 24 and a horizontal support shaft 25. Is supported by.

According to the above structure, the drive gear wheel 14 shown in FIG. 3A is rotated by the motor 15 of the drive means 12 to drive the hanging rope 7 (chains 26a, 26b), thereby raising and lowering the carriage 5. The counterweight 6 and the column weights 6 are driven up and down in opposite directions along the columns 3 and 4,
Transport guide rails 1a and 1b and transport guide rail 1
It is possible to lift and transport a transport train or the like that has been transferred from the top of c to the suspension rail 10. Then, the suspension rail 1
In order to connect 0 to the transport guide rails 1a and 1b, when the raising / lowering carriage 5 is raised to the upper limit position as shown in FIGS. 1 and 3B, it is suspended as shown in FIGS. 3B to 5. The rail suspension frame 9 that suspends the rail 10 rises from the support columns 3 and 4 to a position close to directly below the continuous arm-shaped frame 13, and is pivotally supported on the arm-shaped frame 13 side and below. The guide teeth 16 protruding to the side are fitted in the rail suspension frame 9.

The elevating / conveying device shown in FIG. 6 has two elevating and lowering drive units 2 each including two columns 3, 4, an elevating carriage 5, a counterweight 6, and a hanging rope 7.
8A and 28B are installed side by side, and both lifting drive units 28A and 2B
A large pedestal 29 corresponding to the pedestal 11 is installed between the upper ends of the 8B, and a pair of arm-shaped frames 30a corresponding to the arm-shaped frames 13 corresponding to the lifting drive units 28A and 28B from the pedestal 29.
30b are connected in series, and the two elevator carriages 5 in each elevator drive unit 28A, 28B support both ends of a large-sized rail suspension frame 31 corresponding to the rail suspension frame 9, and further on the mount 29. To drive the hanging rope 7 in both the lifting drive units 28A and 28B.
A drive means 35 including a drive shaft 32 that interlocks and connects two drive toothed wheels (the drive toothed wheels 14) with each other, and a motor 34 that drives the drive toothed wheels 32 through a speed reducer 33. is there.

According to the present invention, the arm-shaped frames 30a and 30b, the rail-hanging frame 31, and the arm-shaped frames 30a and
The present invention can be applied to the configuration of the guide tooth ring (the guide tooth ring 16) axially supported for guiding the hanging rope 7 to 30b. Further, the present invention is also implemented as an elevating / conveying device of the type in which only the elevating carriage 5 is provided in the middle, or the elevating carriage and the counterweight 6 are interposed, and the elevating carriage 5 is vertically driven by a circulation type elevating drive rope. You can In this case, it may be an elevating / conveying device in which the driving means for the elevating and lowering rope is arranged on the lower end side of the elevating path of the elevating carriage 5 (the lower end side of the column).

[0014]

As described above, according to the elevating / conveying apparatus of the present invention, the rail suspension frame supported by the elevating carriage when the elevating carriage is raised to the ascending limit position is guided by the elevating carriage. In the vicinity of the lower side of the arm-shaped frame that is continuously connected in a cantilever manner from the upper end of the supporting column, a pivotal support is provided at the tip of the arm-shaped frame for guiding the hanging rope that suspends the lifting carriage. Since a part of the guide toothed wheel is loosely fitted in the rail suspension frame, the thickness of the arm-shaped frame that pivotally supports the large guide toothed wheel is reduced, and The rising limit height of the rail suspension frame with respect to the arm-shaped frame can be increased.

In other words, the guide toothed wheel is arranged almost directly above the rail suspension frame (in other words, suspension rail), and the carriage hanging lower end of the suspension rope is located near the suspension rail. Even if they are connected to each other, by disposing the arm-shaped frame at the highest allowable level, it is possible to increase the ascending limit height of the rail suspension frame, thereby increasing the lifting / conveying stroke. Can be done.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of an elevating / conveying device.

FIG. 2 is a plan view of the lifting / lowering conveyance device. Is.

FIG. 3A is a side view showing a main part of the lifting and lowering conveyance device, and FIG. 3B is a side view of the main part when the lifting and lowering carriage is raised to a lift limit position.

FIG. 4 is a vertical cross-sectional side view showing an enlarged main part of FIG. 3B.

FIG. 5 is a vertical sectional front view of the same.

FIG. 6 is a perspective view showing another lifting / lowering conveyance device.

[Explanation of symbols]

 5 Lifting Carriage 6 Counterweight 7 Suspended Rope 8 Arm 9 Rail Suspended Frame 10 Suspended Rail 11 Frame 12 Drive Means 13 Armed Frame 14 Drive Tooth Wheel 15 Motor with Reducer 16 Guide Tooth Wheel

Claims (1)

[Claims] 1. An elevating / conveying device capable of ascending / descending along a column and vertically elevating and lowering a lifting carriage by means of a cantilever rail suspension frame continuously connected to the front, at the upper end of the column. A state in which an arm-shaped frame extending in a cantilever manner from the front side to the front side of the arm-shaped frame is provided continuously, and a guide tooth wheel for turning the hanging rope downward is proximate to the tip of the arm-shaped frame. And the rail suspension frame is close to the lower side of the arm-shaped frame when the elevating carriage is raised to the ascending limit position, and a part of the guide tooth ring is attached to the rail suspension frame. An elevating / conveying device which is adapted to be loosely fitted into the guide tooth ring and is connected to a position near a hanging rail of the rail hanging frame of a carriage hanging lower end of the hanging rope.