JP3570152B2 - Hanging transfer device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a hanging-type transport device used for transporting a large number of transported goods in factories, warehouses, and the like, that is, a so-called overhead conveyor.
[0002]
[Prior art]
In general, this type of suspended transfer device of this type uses a system in which an endless chain is circulated in the air and a conveyed object is hooked on the chain.
[0003]
[Problems to be solved by the invention]
However, such a conventional suspended conveyance device requires a loud running noise, can only suspend a conveyed object at a fixed interval, requires regular maintenance (adjustment, refueling) of a chain, and requires refueling. Since it is necessary, it has disadvantages such as not being suitable for a place requiring a clean environment.
[0004]
The present invention has been made in view of the above-described various problems in the related art, and provides a novel hanging transfer device that can be used regardless of the type of business, such as medical treatment and food, and that can realize an easy-to-maintain, quiet, and clean working environment. With the goal.
[0005]
[Means for Solving the Problems]
According to the present invention, the object is to provide a drive shaft that is installed upward along a transport path and that is driven and rotated around an axis, a trolley suspended on the drive shaft, and a transported article support suspended from the trolley. Carrier and the drive shaft, on one side of the drive shaft, and on one side of the drive shaft, faces obliquely upward with the same inclination angle, and on the other side of the drive shaft, faces obliquely downward with the same inclination angle. This problem is solved by providing two front and rear traveling wheels, and driving the carrier for supporting articles along the drive shaft by driving rotation of the drive shaft.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a conceptual view of a part of an overhead conveyor system which is an embodiment of a suspended transfer apparatus according to the present invention. A trolley (2) is temporarily moved from a drive shaft (1) forming a transfer path to a work station. The work is moved down to (3), where the work (4) is carried out, and is returned to the drive shaft (1) again.
[0007]
The drive shaft (1) is rotationally driven around an axis by a belt-type rotary drive device (5), and runs a trolley (2) suspended on the drive shaft (1) as described later.
[0008]
Above the drive shaft (1), a branch rail (6) called a gravity line is provided.
At the top of the trolley (2), a gravity line wheel or separation wheel (7) is arranged, which separates the front movable part (6a) of the branch rail (6). It has become.
[0009]
When the front movable part (6a) is lifted by the lifting device (8) from the riding state, the separation wheel (7) and thus the trolley (2) are lowered to the work station (3) by using the inclination.
The lifting device (9) lifts and lowers the rear movable portion (6b) of the branch rail (6). The trolley (2) lifts the rear movable portion (6b) by the lifting device (9), and moves the rail ( By sending it to 6c), it is returned on the drive shaft (1) again and continues running.
[0010]
The drive shaft (1) is a hollow aluminum or aluminum alloy tube having a maximum length of about 20 m, and is housed in a beam (10) shown in FIGS.
The beam (10) is formed by pulling out aluminum into a roughly gutter shape, and is suspended and supported by a support member (not shown) from a ceiling of a factory or the like along a transport path. In this beam (10), a drive shaft (1) is provided rotatably about its axis.
[0011]
Although only one rotation driving device (5) is shown in FIG. 1, it is arranged at a plurality of positions along the transport path according to the length of the drive shaft (1), as shown in FIG. Then, four belts (11) are wrapped around the output shaft (5b) of the electric motor (5a), and the other end of the belt (11) is wrapped around the drive shaft (1) to rotate the drive shaft (1). It is driven.
The upper surface of the belt (11) wrapped around the drive shaft (1) is flush with the outer surface of the drive shaft in the upper portion of the drive shaft (1), and hinders traveling of the trolley (2) described later. Never.
[0012]
As shown in FIG. 3, the trolley (2) is a member made of resin molding or aluminum die-cast, and has a suspension part (12) and a horizontal shaft (13) (FIG. 4) below the suspension part (12). It comprises a suspended portion (14) supported by a shaft, and a carrier (16) for supporting a transported object supported by a vertical shaft (15) below the suspended portion (14).
[0013]
On the upper part of the suspension part (12), the above-mentioned separation wheel (7) is mounted so as to be rotatable about a horizontal axis, and on the lower part, an arm part (12a) extending above the drive shaft (1). ) Is formed.
[0014]
As shown in FIGS. 3 to 5, the lower surface of the arm portion (12a), positioned above the right and left drive shafts (1), and in one side of the drive shaft (1), with the same inclination angle swash faces upward, and at the other side of the drive shaft (1) is running wheel of each two front and rear faces obliquely downward with the same angle of inclination (17) (17), a bearing bracket which is pivotally supported with a shaft (19) It is attached to (21) with a pivot (18) .
[0015]
A piece (20) shown in FIGS. 3 and 4 is an address member, and sets a plurality of pieces (20) in accordance with an address, and gives an instruction from an address reader disposed at a branch point or the like of a transport path. It is for reading the contents and transporting the trolley to the destination.
[0016]
Next, the principle of traveling of the trolley (2) will be described.
The full load of the trolley (2) is applied to the traveling wheel (17) of the trolley (2) suspended on the drive shaft (1) rotated around the axis by the rotary drive (5), and the drive shaft ( It is pressed against 1).
Since the traveling wheel (17) is inclined with respect to the axis of the drive shaft (1) as shown in FIG. 5, the traveling wheel (17) is rotated by the rotation of the drive shaft (1) (round arrow in FIG. 5). When the wheel is rotated, a component force (straight arrow in FIG. 5) is generated along the axis of the drive shaft (1), whereby the trolley (2) supporting the traveling wheel (17) moves forward. Will be promoted.
[0017]
【The invention's effect】
According to the present invention, since an endless chain or the like is not used, the operation noise is quiet, and maintenance such as lubrication and chain extension is not required, and it can be used in a place where a clean environment is required.
In addition, since the individual trolleys move independently, there is no restriction on the suspended pitch of the transported object, and a safe suspended transport apparatus is provided.
Therefore, it is possible to respond flexibly in any environment regardless of the type of business such as medical care, food, and automobile.
[0018]
Because the axis of the trolley wheel is oblique to the axis of the drive shaft in both the vertical and horizontal planes, the rotation of the drive shaft can produce a forward force on the trolley.
[0019]
Running wheels of the trolley is located two each before and after Oite the upper right and left drive shafts, and their axes, in one side of the drive shaft, with the same angle of inclination toward the oblique upward, the other side of the drive shaft Because the trolley is abutted on both sides of the upper surface of the drive drive shaft at the same inclination angle and diagonally downward , the trolley can be stably advanced without being shaken to the side of the drive shaft, The trolley can be stably advanced in the left-right direction and the front-back direction.
[Brief description of the drawings]
FIG. 1 is a schematic view showing the vicinity of a work station of an embodiment of a hanging transfer device of the present invention.
FIG. 2 is a perspective view of a rotary drive device that drives the drive shaft shown in FIG.
FIG. 3 is a perspective view of the trolley suspended from the drive shaft as viewed obliquely from above.
FIG. 4 is a perspective view of the upper part of the trolley suspended from the drive shaft as viewed from the front.
FIG. 5 is a conceptual enlarged plan view showing a relationship between a trolley wheel and a drive shaft.
[Explanation of symbols]
(1) Drive shaft
(2) Trolley
(3) Workstation
(4) Conveyed goods
(5) Rotary drive
(5a) Electric motor
(5b) Output shaft
(6) Gravity line or branch rail
(6a) Front movable part
(6b) Rear movable part
(6c) Rail
(7) Gravity rail wheel or separation wheel
(8) (9) Lifting device
(10) Beam
(11) Belt
(12) Suspension
(12a) Arm
(13) Horizontal axis
(14) Hanging part
(15) Vertical axis
(16) Carrier for supporting conveyed goods
(17) Running wheel
(18) Axis
(19) axis
(20) Piece
(21) Bearing bracket

Claims (1)

A drive shaft that is erected upward along the transport path and is driven and rotated around an axis, a trolley suspended on the drive shaft, and a carrier for supporting a transported article suspended from the trolley,
It is located on the upper left and right sides of the drive shaft, one side of the drive shaft faces obliquely upward at the same inclination angle, and the other side of the drive shaft faces obliquely downward at the same inclination angle, two each before and after. With a traveling wheel of
A suspended transport device, wherein the carrier for supporting the transported object is propelled along the drive shaft by the drive rotation of the drive shaft.

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