JP7335016B1 - basket hanging device - Google Patents

Abstract

An object of the present invention is to provide a basket hanging device that has a simple structure but can detect whether or not a basket is properly chucked when performing a basket lifting operation. The present invention includes a base member, a plurality of arm members whose rear ends are pivoted to the base member, and a shaft member that mutually opens and closes the plurality of arm members, each of the plurality of arm members having a distal end thereof. It has a chuck part on the side and an opening/closing link member in which the arm member is connected to the shaft member in the middle, and the plurality of arm members are in a closed state in the raised position where the shaft member is raised, and the shaft member is closed. When the shaft member is lowered to bring the opening/closing link member into a horizontal state, the plurality of arm members become fully open, and when the shaft member is further lowered, the plurality of arm members retreat in the closing direction. [Selection diagram] Figure 1

Description

TECHNICAL FIELD The present invention relates to a basket suspending device used to carry out various processes such as transporting and washing a workpiece, and more particularly to a detection mechanism for detecting whether or not a basket has been successfully chucked.

2. Description of the Related Art A basket for storing works, materials, etc., is used to suspend and transfer a plurality of works, materials, etc. in a factory, or to put the works in and perform various treatments such as cleaning.
In order to hang this kind of basket, in the closed state in which the gap between the multiple chucks and claws that can be opened and closed is narrowed, the gap is widened after the basket is inserted between the opening and the hook. The basket is chucked, lifted and transferred.
Therefore, unless the chuck portion is properly chucked by the hook portion of the basket, the basket cannot be lifted.
Moreover, it is dangerous if the chuck part comes off during lifting.

For example, Patent Literature 1 discloses, as a gripping device for suspension transfer, a technique in which an operation casing for releasing a lock does not move except at a place where it should be operated.
However, the structure is complicated and the versatility of the basket hanging device is poor.

JP-A-9-123081

SUMMARY OF THE INVENTION It is an object of the present invention to provide a basket suspending device which has a simple structure and is capable of detecting whether or not the basket is normally chucked when the basket is being lifted.

A basket hanging device according to the present invention comprises a base member, a plurality of arm members pivotally attached to the base member at their rear end sides, and a shaft member for mutually opening and closing the plurality of arm members. Each of the plurality of arm members has a chuck portion on the tip end side, and an open/close link member that is articulated to the shaft member in the middle of the arm member. When the shaft member is lowered to bring the opening/closing link member into a horizontal state, the plurality of arm members are fully opened, and when the shaft member is further lowered, the plurality of arm members are retracted in the closing direction. It is characterized by

The term "basket" as used herein refers to a device for storing and suspending objects such as various raw materials and works inside, and includes a container-like case, a frame made of wires, strips, etc. , with no restrictions on its structure.

In the basket, a plurality of arm members having a chuck portion on the tip side are inserted into the hook portion in a closed state, and when the arm member is opened, the arm member is engaged with the hook portion and chucked.
Here, if the chuck portion is normally engaged with the hook portion before the chuck portion reaches the fully open state, the arm member will not open any further, so that state can be maintained.
However, if the chuck portion is not normally locked by the hook portion, the chuck portions of the plurality of arm members are further opened, and after the horizontal state in which the opening/closing link member is fully opened, the plurality of arm members retreat in the closing direction. Therefore, it is safe if this state can be detected, and the chuck operation of the basket can be performed again.

Therefore, in the present invention, it is preferable to have sensor means for detecting the closed state of the plurality of arm members, the normal chucking state of the basket, and the retracted state in the closing direction.
The sensor means may be either an optical sensor or a magnetic sensor.
Each of the upward, horizontal, and downward positions of the opening/closing link member may be detected, and a drive section for vertically stroking the shaft member is provided, and the plurality of arms are detected by the stroke amount of the shaft member by the drive section. It is also possible to detect the closed state of the member, the normal chucking of the basket, and the retraction in the closing direction.

In the basket hanging device according to the present invention, as an opening/closing operation mechanism for a plurality of arm members for chucking a basket, the shaft that moves vertically and the middle of the plurality of arm members are linked, and the movement of the link is Therefore, it is possible to detect whether the basket is normally chucked or not with a simple structure and high accuracy.
Further, when the basket cannot be chucked normally, the chuck portion on the tip side of the arm member closes toward the inner side of the opening of the basket, thereby ensuring safety.

1 shows a structural example of a basket suspension device according to the present invention. (a) shows a state in which the plurality of arm members are closed, and (b) shows a state in which the plurality of arm members are open and the basket is normally chucked. (a) shows a state in which the opening/closing link member is horizontal and the plurality of arm members are fully opened, and (b) shows a state in which the plurality of arm members are retracted in the closing direction.

An example of the structure of the basket hanging device according to the present invention will be described below with reference to the drawings, but the present invention is not limited thereto.

In the embodiment shown in FIG. 1, the basket 1 is an example of a frame formed by combining bars and plates.
An opening 1a in the upper part of the basket 1 is formed in a frame shape, and the basket 1 is suspended using this opening 1a.
In FIG. 1, a part of the opening is indicated by a dashed line so that the structure of the opening can be easily understood.
The left and right openings 1a serve as hooks.

The suspension device 10 is connected to a transfer device (not shown) via a connecting portion 18 or the like.
An outer cylinder 15 is vertically provided from the connecting portion 18, and a shaft member 14 whose vertical movement is controlled by a driving portion 16 is provided inside.
The drive unit 16 may be of an air cylinder type or a motor type.
A base member 11 is fixed to the lower end of the outer cylinder 15, and the lower end side of the shaft member 14 penetrates the base member 11 and protrudes downward.
A plurality of arm members are provided from the base member 11 so as to be mutually openable and closable.
A plurality of arm members, such as two or three, are provided according to the structure of the opening 1a of the basket 1. FIG.
The embodiment shown in FIG. 1 is an example in which the first arm member 12 and the second arm member 13 are arranged to face each other.

The rear end of the first arm member 12 is rotatably attached to one end of the base member 11 by a shaft attachment portion 12a. It has a chuck portion 12b for stopping.
One end of the first link member 12c is axially attached to the middle of the first arm member 12 via a bracket 12d, and the other end of the first link member 12c is attached to the tip side of the shaft member 14 in the vertical direction. It is journalled to an adjustable articulated bracket 14a.
In this embodiment, an externally threaded portion is formed at the lower end of the shaft member 14, and the height of the articulated bracket 14a is adjusted with a double nut 14b.

Similarly to the first arm member 12, the second arm member 13 also has a rear end side pivotally attached to the other end portion of the base member 11 by a shaft attachment portion 13a, and has a chuck portion 13b on the tip side of the arm member.
The second arm member 13 is articulated by a joint bracket 14a on the shaft member 14 side and a link member 13c via a bracket 13d.

As a result, when the shaft member 14 is lifted by driving the driving portion, the articulated bracket 14a is lifted, and the tip side chuck portions 12b and 13b of the first arm member 12 and the second arm member 13 are closed to each other.
In this state, the chuck portions 12b and 13b on both sides are positioned in the opening portion 1a of the basket 1 as shown in FIG. 2(a).
When the shaft member 14 is lowered in this state, the articulated bracket 14a is lowered, and the left and right link members 12c and 13c spread in the horizontal direction. The chuck portions 12b and 13b on both sides are engaged with the opening portion 1a of the basket 1. As shown in FIG.
The drive unit 16 detects the torque load and the like at this time, the chucked state of the basket 1 is maintained, and the basket 1 is lifted and transferred.

As the shaft member 14 descends, the chuck portions of the plurality of arm members open in the opening direction. After passing through the fully open position in the horizontal state shown in (a), the shaft member 14 is further lowered as shown in FIG. 3(b).
Then, the chuck portions 12b and 13b at the tips of the plurality of arm members are retracted in the closing direction.
By detecting this retreating state with a sensor, it is possible to prevent the basket 1 from rising without being properly chucked.

A position where the shaft member 14 rises and the arm member is closed, a position where the shaft member 14 is lowered and the chuck portion is engaged with the opening of the basket, and a position where the shaft member 14 is further lowered and the arm member is closed. As the sensor means for detecting the retracted position in the direction of , the position of the vertically moving articulated bracket 14a, the inclination of the link members 12c and 13c, and the like can be detected.
Alternatively, a stroke sensor 17 may be attached to the upper portion of the shaft member 14 or the like to detect the stroke amount of the shaft member 14 .

1 basket 1a opening 11 base member 12 first arm member 12b chuck portion 13 second arm member 13b chuck portion 14 shaft member 14a articulated bracket 15 outer cylinder 16 drive portion 17 stroke sensor

Claims (3)

a base member, a plurality of arm members pivotally attached to the base member at their rear end sides, and a shaft member for mutually opening and closing the plurality of arm members,
each of the plurality of arm members has a chuck portion on the tip end side and an open/close link member articulating the arm member in the middle to the shaft member;
The plurality of arm members are in a closed state at the raised position where the shaft member is raised,
When the shaft member is lowered and the open/close link member is placed in a horizontal state, the plurality of arm members are fully opened,
A basket suspending device, wherein when the shaft member is further lowered, the plurality of arm members are retracted in the closing direction. 2. The hanging basket according to claim 1, further comprising sensor means for detecting a closed state of said plurality of arm members, a state in which the basket is normally chucked, and a state in which the basket is retracted in the closing direction. Device. It has a drive unit that strokes the shaft member in the vertical direction, and the stroke amount of the shaft member by the drive unit changes the state of the plurality of arm members, the state in which the basket is normally chucked, and the closing direction. 3. The apparatus for suspending a basket according to claim 2, wherein the retracted state is detected.

Images