JPH01187193A - Suspending tool for cylindrical article - Google Patents

Abstract

PURPOSE:To suspend a cylindrical article in stable and safe ways by combining the pantagraph-shaped first link mechanism having the hooks which can be opened and closed and the pantagraph-shaped second link mechanism having a pressing plate. CONSTITUTION:The top point of the first pantagraph-shaped link 16 which has the hooks 11 and 11a which can be opened and closed is pivotally installed at the center pivotal supporting part of the second pantagraph-shaped link 17 in the upper and lower stages. The bar 13b of a pressing plate 13 installed onto the lower stage link 17 is inserted into a cylindrical guide 27 fixed at the center pivotal installation point. When the hook 11 in opened state is fixed onto a handle 8, and the suspending ring 7 of the second link 17 is lowered, the pressing plate 13 contacts the upper surface of a suspended article 4, and the second link contracts and an acting force is transmitted to a main link 16. Then, the setting of the handle 8 is released, and the hook 11 is put into closed state. When the suspended link 7 is suspended, both links 16 and 17 are extended, and the upper surface of the suspended article 4 is relatively pressed by the pressing plate 13.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a cylindrical member made of materials such as metal, resin, wood, etc.
Crane hook for grasping and suspending cylindrical members, etc.
This invention relates to a hanging tool used for a robot's hand, etc.

(Prior Art) As an example of a conventional hanging device of this type, a case will be explained in which a round bar, which is a cylindrical member, is lifted.

FIG. 4 shows a state in which a round bar is suspended by a conventional round bar hanger. When the suspension ring 1 is first lifted up using a crane hook or the like, the claws 3.3 extending from the lower link intersection are in an open state due to the force of the tension spring 2 attached to the pantograph-like link 6. . Lower this to the round bar 4 and attach the handle 5 attached to the lower link intersection.
When the worker lifts the hoist by supporting it with his/her hands, the left and right claws 3, 3 close due to the action of the link 6, gripping the round bar 4 from the outer periphery, and lifting the hoisting ring 1 here. Due to their weight, the winter melons 3, 3 lift the round rod 4 while tightening it. On the other hand, for operation during removal, there are round bar holders 19 and 19 near both ends of the round bar 4.
If you put down the hanging ring 1, the round bar 4 will be placed on the round bar holder 19.1.
9, the claws 3, 3 are opened by the spring 2, and removed from the round bar 4.

(Problem to be Solved by the Invention) These conventional round bar hoisting tools simply hold the round bar between the sides of the link and lift it up, but there is no presser to secure the round bar to the hoisting tool during lifting. , the workpiece is unstable during transportation. In addition, in the case of a lifting tool with a presser foot, the worker lifts the workpiece after tightening and holding the workpiece, so there are two
This increases the complexity of the work, and there is also the risk of accidents due to operational errors.

Furthermore, with conventional hoisting tools, in order to pinch the round bar by rotating the claws of the hoisting tool to the underside of the round bar, the worker must support the hoisting tool with his/her hands while operating the crane, which is an unsafe task. And so.

The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a hanging tool that ensures stability of a workpiece during transportation, ease of work, and safety.
(Means for solving the problem) Therefore, the present invention provides a main link mechanism having a claw that is normally biased in the closing direction and can be opened and closed, and a main link mechanism that vertically guides the intersection of the claw and the main link. A second link mechanism is provided between the claw, a second link mechanism consisting of a presser plate at the lower end that abuts the upper part of the cylindrical suspended object, and two upper and lower links centered on the intersection point provided above both presser plates. A cylindrical cylinder comprising a handle for setting both claws in two positions (open and closed), and a hanging ring is connected to the top of the upper link, and the upper end of the presser plate is connected to the lower end of the lower link. The present invention consists of a hanger for a shaped object, and this is used as a means of solving the above-mentioned problems.

(Function) When the hanging ring is first hung on the hook of a crane, etc., the claw is set in the first fixed part of the handle and is in the open state. When the hanging tool is lowered from this state, the cylindrical suspended The presser plate comes into contact with the top surface of the object.

When the hanging tool is further lowered, the second link contracts and the acting force begins to be transmitted to the main link. Here, when the handle is unset, the main link begins to close its pawl due to spring force, and when the pawl is closed to a predetermined position, the handle is set again and the closed state is maintained.

Next, when the suspended object is lifted up through the hanging ring in this state, the suspended object is held between the claws, and when the hanging ring is further raised, the second link and the first link are extended, and the presser plate is relatively lowered and presses the upper surface of the suspended object downward to fix the position.

When removing the suspended object from the hanging tool, the hanging ring is lowered and the suspended object is placed on a predetermined table. At this point, if you release the above-mentioned setting of the handle and then lower the hanging ring, the first link and the second link will be connected.
The links contract together and the claws open. With the claws fully open, set the knob again to fix the condition, and then remove the hanging tool from the suspended object.

(Embodiments) Hereinafter, representative embodiments of the present invention will be described in detail based on the accompanying drawings. FIG. 1 shows the round bar hanger according to this embodiment in an open state, and FIG. 2 shows the round bar hanger according to this embodiment in a suspended state.

The main structure of the present invention is a combination of two pantograph-like link mechanisms.

One of the first links 16 has the same structure as a conventional hanging tool body, but one claw 11a connects two plates with a pin 10 with a desired gap, and one end is inserted into the gap. A notch handle 8 pivotally attached to the other claw 11 is inserted into the notch handle 8, and the pin 10 is configured to engage with two notches 12a and 12b formed at a predetermined interval in the notch handle 8. . Support plates 15.degree. 15a are fixed to the tips of the winter melons 11 and 11a, respectively.

The second second link 17 consists of a pantograph-like link mechanism with two upper and lower stages made up of six elements with a suspension ring 7 pivotally attached to the tip of the top, and the first link 16 is attached to the central pivot point of the second link 17.
A cylindrical guide 27 is vertically fixed to the side surface of the pivot point 1. In addition, on the pin at the top of the lower end of the 21st Junk 17, there are two presser plates 13 and 13' that extend vertically downward and have an approximately inverted Y-shaped planar shape.
The upper end is fixed, and a slide par 13b is erected at the top of one of the two press plates 13 and 13', and the slide par 13b is connected to the cylindrical guide 27.
inserted into.

A vertically elongated hole 13a is provided in the center of the presser plate 13, 13'.

A shaft portion of a handle 14 projecting laterally from a lower pivot portion of the first link 16 is slidably fitted into each elongated hole 13a, 13a′. In addition, in the figure, 4 is a round bar, 19 is a round bar holder, and 26 is a tension spring.

In the lifting tool according to this embodiment having the above configuration, when the hanging ring 7 is first lifted up via a crane hook or the like, the notch 12a on the near side in the operating direction of the notch handle 8 is connected to the pin 10.
The claw 11. lla is in an open state. When this is lowered to the round bar 4, the round bar 4 and the presser plate 13 come into contact with each other, and when the hanging tool is lowered further, the second link 17 contracts and the first
The presser plates 13 and 13' are raised relative to the link 16, and the lower ends of the elongated holes 13a formed in the presser plates 13 and 13' come into contact with the shaft of the handle 14. Handle 14
is loosely fitted into the groove 13a, and rotatably connects the pawl 11.11a. When the notch handle 8 is rotated upward using the pivot point as a fulcrum, the claw 11.11a is closed by the spring 26.26a as shown in FIG.
The pin 10 engages with the notch 12b on the fulcrum side of the notch handle 8, and the support plate 15.15a closes to reach the maximum diameter of the round bar that can be hung with this hanging tool. When the hanging ring 7 is raised, the round bar 4 is placed on the support plate 15.15a, and the hanging ring 7 is further raised.
When raised, the second link 17 expands and the presser plate 13.13
' is further lowered relative to the first link 16, and the round bar 4
is tightened between the support plate 15.15a and the round bar 4 is lifted up while being held down.

To remove the rod, place the round bar holder 19 near both ends of the round bar 4, lower the hanging ring 7, the round bar 4 will come into contact with the round bar holder 19, and then raise the notch handle 8 to remove the notch. When the pin 10 is removed from the handle 8 and the hanging ring 7 is lowered, the first link 16 is contracted and the claw 11.11a is opened.In this state, when the pin 10 is engaged with the notch 12a on the front side of the notch handle 8, the claw 11. ．． lla is in the open state and the round bar 4 is removed.

The details of the operation of the two sets of link mechanisms will be explained with reference to FIG.

In the figure, the broken line indicates the operation of the second link 17, and the solid line indicates the operation of the first link 17.
The operation of the link 16 is shown below. When lifting a workpiece, the operation of the first link 16 operates first, so we will explain the operation of the first link 16 first. A "closing movement 24" of plate 15.15a takes place. In addition, the hanging ring 7 is "lowered movement 22"
This causes the support plates 15, 15a to open (movement 25).

The "movement 20 to raise" the hanging ring 7 causes a "movement 21 to lower the presser plate 13". Also, the movement 2 of lowering the hanging ring 7
21 causes a movement 23'' in which the presser plate 13 is raised r.

Utilizing these movements, this hanging tool moves as described above.

(Effects of the Invention) As described above in detail, according to the present invention, the claws can be grasped and opened almost only by the vertical movement of the hanging tool, and as a result, work becomes easier and fatigue of work clothes is reduced. Leads to reduction. In addition, according to the present invention, since there is three-point support using the claw part of the hanging tool and the presser plate, the grip width is wide and cylindrical objects do not slide sideways, allowing for stable hanging and ensuring work safety. be done.

[Brief explanation of the drawing]

1 to 3 relate to the present invention; FIG. 1 is a perspective view of the hanging tool when the claw is in an open state; FIG. 2 is a perspective view of the hanging tool when a cylindrical object is in front of the hanging shape; FIG. 3 is an explanatory diagram of the operation of the same hanging tool, and FIG. 4 is a perspective view of a conventional similar hanging tool. Explanation of the main parts of the figure 4 - Round bar 7 - Suspension ring 8 - Notch handle 11.11a - Claw 13.13'
-・Press plate 16-・1st link 17-2nd link 26-Spring 1 figure 2 figure 3 figure

Claims (1)

[Claims] A main link mechanism having a claw that is normally biased in the closing direction and can be opened and closed; a presser plate that guides the intersection of the claw and the main link in the vertical direction and has a lower end that abuts the upper part of the cylindrical suspended object; Up and down 2 centered on the intersection provided above the presser plate
It consists of a second link mechanism consisting of links in stages, and a handle provided between the pawls to set the pawls in two positions, open and closed. A hanging device for a cylindrical object, characterized in that the upper end portions of the presser plates are connected to each other.