JPH11314879A - Article gripper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable installation on and removal from a pipe in a small space, and to take a stable grip. SOLUTION: This gripper 1 is composed by providing a trunk part 2, a claw part 3, and a lock part 4. The trunk part 2 consists of a pipe support part 21 formed in the circular arc form in the contact surface, and a claw support part, and the claw part 3 has two arms 31 and 31 provided opposing and allowable to open and close. At the upper part of the arms 31 and 31, washer locking parts 32 and 32 are formed, and the arm locking parts 43a and 43a of a washer 43 are pressed to the washer locking parts 32 and 32 of the arms 31 and 31, by fastening the nut 42 of the lock part 4, so as to rotate the arms 31 and 31 in the closing direction. And the pipe is held by the inner periphery of the pipe support part 21 and the grips 33 and 33 of the arms 31 and 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an article gripping tool, and more particularly to an article gripping tool for gripping, transporting, and fixing a fume pipe or a ceramic pipe in sewage works.

[0002]

2. Description of the Related Art Generally, in sewage works, excavation of the ground to replace fume pipes, ceramic pipes (hereinafter referred to as pipes), or new pipes is performed. Conveyed by In order to transport the tubes, the tubes must be secured in a stable manner and the secured portions must be hooked to hooks suspended from cranes or lifts. A conventional simple method of locking an article to a hook of a crane or a hook suspended from a lift is to screw a hanging bolt on the article and to hook the hanging bolt directly or via a wire to the hook. For an article to which the suspension bolt cannot be screwed, a cloth belt, a chain, or a wire is wound around the article, and the cloth belt, the chain, or the wire is directly engaged with the hook. Since pipes used in sewage works are formed in a round shape and cannot form screws for hanging bolts, cloth belts are generally used.

However, in order to wind a heavy and long tube with a cloth belt, it is necessary to find the position of the center of gravity to prevent the tube from being biased, or to lift the tube to wind the cloth belt. , Which made the work difficult. For this purpose, an automatic tightening clamper 80 as shown in FIG. 12 is provided. This clamper 80
Has a fixed arm 81 and two movable arms 82 rotatable with respect to the fixed arm 81, and a lock arm 84 having a rubber pad 83 attached between the fixed arm 81 and the movable arm 82. It is rotatably attached to both sides orthogonal to the arms 81 and 82, respectively. The movable arm 82 is pivotally supported between two support plates 81a and 81a fixed at the upper part of the fixed arm 81, and the lock arm 84 is formed in a panda graph shape together with a suspension hook 85 at the upper end of the fixed arm 81. It is pivoted.

[0004] A support plate 8 is provided above the movable arm 82.
By rotating a handle 86 pivotally supported by 1a and linked to the movable arm 82, the movable arm 82 is opened and closed. When the movable arm 82 is closed, the inner peripheral surfaces of the fixed arm 81 and the movable arm 82 are opened. And lock arm 8
The rubber pad 83 of No. 4 gripped the tube. Thereafter, the suspension hook 85 is suspended by a crane or the like and transported to a predetermined place.

[0005]

However, in sewage works, since a pipe is buried in the ground, a hole to be drilled in the ground must be formed to a minimum size for passing the pipe. Although the clamper 80 is formed to be compact as a whole, since the movable arm 82 rotates with respect to the fixed arm 81, the opening radius must be large in order to grip the tube, and The space is too small to be used in the limited hole inside,
Can not be opened. In addition, since the clamper 80 automatically operates the movable arm 82, it is difficult to understand the degree of tightening of the tube. If the amount of tightening is small, the tube may drop, or if the amount of tightening is too large, the tube may be damaged.
It is difficult to set an appropriate tightening amount.

Further, when new processing is performed on a pipe, a manual processing machine must be directly mounted on the pipe to perform processing, so that stable mounting and processing on the pipe cannot be performed.

An object of the present invention is to solve the above-mentioned problems, and a first object of the present invention is to provide an article gripper which can stably clamp an article, particularly a pipe, and can be mounted on the pipe very easily. In addition, a second object is to provide an article gripper formed so that it can be easily attached to a pipe and can be subjected to a new process on the pipe.

[0008]

An article gripper according to the present invention has the following configuration to solve the above-mentioned problems. That is, it is an article gripper for gripping and fixing an article, which is formed having at least one pair of openable and closable claw means and a body supporting the claw means, wherein the claw means is provided. , Having two opposing arms,
Each arm is pivotally supported by the body at the base and formed with a grip at the tip, and a locking means is provided at the base of the claw means for simultaneously rotating the arms in the closing direction. The body is formed so as to grip an article with a part of the body part and the gripping part.

It is preferable that the body has an arc-shaped article supporting portion and a hook for suspension is provided.

The article gripper is for gripping and fixing an article, and has at least one set of openable and closable claw means and a body supporting the claw means. The claw means has two opposing arms, each arm being pivotally supported at the base by the body, and formed with a gripping portion at the tip, and the base of the claw means In this, a lock means for rotating the respective arms in the closing direction at the same time is provided, and a pedestal portion for attaching a simple processing machine and a machining hole are formed on the body portion,
The article is formed so that an article is gripped by a part of the body part and the gripping part.

[0011] Preferably, a part of a body portion for gripping the article and the grip portion are non-slip processed.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

The article gripping device 1 (hereinafter referred to as a gripping device) 1 of this embodiment can be used very effectively for gripping and suspending a water pipe such as a fume pipe or a ceramic pipe. As shown in the figure, the body part 2 and two sets of claw parts (claw means) 3 which are arranged at both ends of the body part 2 and are openable and closable.
And a lock portion (lock means) 4 for pressing the claw portion 3 in the closing direction. The claw portion 3 and the lock portion 4 show a characteristic portion of the present invention in one set. In this embodiment, the claw portion 3 and the lock portion 4 each have two sets of claw portions and a lock portion which can stably hold a long tube. Will be described.

The body 2 has a tube support 21 having an arc-shaped cross section formed in accordance with the outer diameter of the tube, and two sets formed integrally with the tube support 21 at both ends of the tube support 21. Claw support 2
2 are formed. As shown in the cross-sectional views of FIGS.
The support plates 23 are vertically arranged with their lower surfaces welded to the upper surface of the tube support 21. And two support plates 2
A space 24 (see FIG. 1) into which an arm described later can be inserted is formed between the three. The support plate 23 is not limited to the U-shape, and two L-shapes may be formed to face each other.

A band-shaped rubber plate 25 is adhered to both ends of the inner side surface of the tube support portion 21 and serves to prevent slippage when gripping the tube. The material of the belt-shaped rubber plate 25 is not particularly limited as long as it has a frictional resistance to the pipe, and liquid rubber may be applied or a cloth member may be used. Further, a non-slip may be formed on the inner peripheral surface of the tube support portion 21 itself. One suspension hook 26 is welded to the center of the upper surface of the tube support 21. Although the hook portion 26 is formed in the shape of an annular ring in the drawing, the shape of the hook is not limited to a particular shape, and may be a hook in which a part of an annular lower portion is cut away, or a T-shaped hook. . Furthermore, two or more may be provided.

As shown in FIG. 2, two arms 31 and 31 pivotally supported on an upper portion of a support plate 23 are arranged on each of the claws 3 so as to face each other and can be opened and closed. ing. Each arm 31
Are formed in a substantially rectangular shape so as to sandwich the outer peripheral surface of the pipe, and a washer engaging portion 32 which is inclined downward toward the inside in a state where the arms 31 are closed in a base portion (upper portion in FIG. 2).・
32 is formed, and is rotatably supported by the shafts 27 fixed to the two support plates 23 near the original portions, and grips the tube at the distal end (the lower part in FIG. 2). Portions 33 are formed. The grip portions 33 are formed wider than the arms 31 and are coated with liquid rubber, and serve to prevent slippage when gripping the tube.
Instead of applying the liquid rubber to the grip portion 33, a band-shaped rubber or a cloth member having a large frictional resistance may be wound,
A non-slip may be formed on the grip portion 33 itself. Further, only one of the rubber plate 25 affixed to the tube support portion 21 and the grip portion 33 to which the liquid rubber is applied may be used to prevent slippage.

The lock portion 4 is provided at both ends of the tube support portion 21.
A male screw 41 disposed in a space 24 between the support plates 23, 23, a nut 42 screwed to the male screw 41, and a washer 4 engageable with the washer locking portions 32 of the arms 31.
And 3. The male screw 41 is connected to the tube support 21 at the lower end.
May be welded to the upper surface and extended upward as it is, or the lower portion may be directly welded to the two support plates 23 and extended upward as it is. The nut 42 has an annular portion 4 at the top so that it can be easily rotated around the male screw 41 manually.
2a is formed. The washer 43 is attached to the arm 31.
Locking portions 43a and 43 engaging with the washer locking portions 32
a is formed so as to project obliquely upward on both sides of the washer 43, and by tightening the nut 42, the two arms 31 and the arm locking portions 43a and 43a of the washer 43 face each other.
The washer locking portions 32 of the 31 are pressed to rotate the respective arms 31 in the closing direction.

Next, the operation of the gripper 1 configured as described above will be described with reference to FIGS. First, as shown in FIG. 4, the suspension hook 26 on the pipe support 21 is suspended by the suspension 7 suspended from a crane (not shown),
Is placed above the tube P. Then, as shown in FIG. 5, the nut 42 of the lock portion 4 is loosened, and the arm locking portions 43a of the washer 43 are connected to the washer locking portions 32 of the arms 31.
32 and the washer 43 is rotated 90 °.

When the lifting tool 7 of the crane is lowered in this state, as shown in FIG. 6, the grips 33 of the arms 31 hit the pipe P, and at the same time, the respective arms 31 also move the shaft 27 of the base. At the same time, the arms 31 rotate toward the outer sides and move the grippers 33 along the outer peripheral surface of the pipe P to open the arms 31.

Further, when the lifting tool 7 of the crane is lowered and the gripping portions 33 of the arms 31 are moved downward from the intermediate portion of the pipe P, the arms 31
7 rotates in the closing direction about the shafts 27, 27, and the gripping portions 33, 33 of the arms 31, 31, of the tube P are positioned at positions where the rubber plate 25 of the tube support 21 contacts the tube P as shown in FIG. It reaches the position where it grips the lower part. In this state, when the arm locking portions 43a of the washer 43 are engaged with the washer locking portions 32 of the arms 31 and the nut 42 is tightened, the two rubber plates of the tube support portion 21 and the respective arms 31 ・ 31
The pipe P can be appropriately tightened with the grip portions 33.

Then, as shown in FIG.
Is raised and the pipe P is suspended and transported into the ground. When the pipe P is stored at a predetermined position in the ground, the gripper 1 is released from the pipe P in the reverse procedure. At this time, if the nut 42 is loosened and the washer 43 is rotated so as to be detached from the arms 31, only the lifting tool 7 of the crane is lifted, the arms 31, 31 are released from the pipe P, and the gripping tool 1 is It will rise with the hanger 7.

When the gripping tool 1 is gripped on the pipe P, the gripping tool 1 is carried directly to the position of the pipe P, instead of being suspended by a crane. You may make it.

As described above, the gripper 1 can be very easily
Can be attached to and detached from the arm.
The gripping portions 33 are moved along the outer peripheral surface of the pipe P, so that they can be used even in a narrow space.

This gripping tool is used not only for hanging a pipe but also when a new processing is performed on a pipe, with a part of the gripping tool changed so that the simple processing machine can be attached to the gripping tool. be able to.

The gripping tool 50 shown in FIG. 9 is formed so that a drilling machine is attached after gripping the pipe in order to form a new hole in the pipe. Sets of claw portions 52 arranged on the portions and respective claw portions 52
The lock section 53 is configured to open and close. Claw 52
The structure of the lock portion 53 and the lock portion 53 is formed in the same manner as the gripping tool 1 described above, and the body portion 51 is changed. The body portion 51 is formed of a tube support portion 61 formed according to the outer diameter of the tube, and two sets of claw support portions 62 formed integrally with the tube support portion 61 at both ends of the tube support portion 61. ing. Each of the claw support portions 62 has two support plates 63 formed in a substantially U-shape in the same manner as described above, each having a lower surface welded to the upper surface of the tube support portion 61 and arranged vertically. A space 64 into which the arm of the claw 52 can be inserted is formed between the two support plates 63.

The tube supporting portion 61 is formed to have a longer length than the tube supporting portion 21 of the gripping tool 1 described above, and has an arc-shaped main body portion 6 formed from the center portion to one of the claw supporting portions 62.
6 and a pedestal portion 67 having a U-shaped cross section formed from the center portion to the other claw support portion 62. The pedestal portion 67 is disposed in the vertical direction, and Welded. Therefore, the upper surface of the pedestal portion 67 is formed in a horizontal plane, so that the drilling machine is supported on the upper surface. An elongated hole 67a is formed in the base 67 in the longitudinal direction, and a bolt and a nut are attached. A hole 66a for inserting a tool attached to the drilling machine is formed in the main body 66.

In the above-mentioned gripping tool 50, the configuration of the tube supporting portion 61 is such that the main body 66 is laid across the two sets of the claw supporting portions 62, and one of the claw supporting portions from the center on the main body 66. The pedestal portion 67 may be overlapped so as to be disposed above the main body portion 66 over 62, and may be manufactured so as to form a processing hole 66a between the center portion and the other claw support portion 62.
In this case, in order to mount a bolt in the long hole 67a of the pedestal 67, a hole may be formed in the main body located below the long hole 67a, or the bolt may be fixed in advance so as to be inserted into the long hole 67a. Good.

When a hole is to be made by grasping the gripping tool 50 in between, first, the gripping tool 50 is carried by hand to a position where the hole is to be drilled. Then, after performing the same operations as those in FIGS. 5 to 7, the base 8 a of the drilling machine 8 is mounted on the pedestal 67 of the gripper 50 as shown in FIG. 10. The mounting of the drilling machine 8 and the pedestal 67 is performed by tightening the base 8a of the drilling machine 8 with bolts 68 and nuts 69 supported on the pedestal 67. The drilling is performed while the tool 8b attached to the drilling machine 8 is inserted into the processing hole 66a of the main body 66.

A gripping tool 70 of another form shown in FIG. 11 is suitable for mounting a hole saw 9 and drilling a hole in a pipe, as described above. The body 71 has a tube support portion main body 75 formed in an arc-shaped cross section corresponding to the outer diameter of the tube, and a cylindrical pedestal portion 76 disposed on the tube support portion main body 75. Be composed. A hole 75a for processing similar to that in FIG. 9 is formed in the tube support portion main body 75, and the pedestal portion 76 is configured so that the shaft portion 9a of the hole saw 9 can be inserted and fixed with a set screw 76a. The operation of the gripper 70 in this mode is described in FIGS.
The description is omitted because it is similar to the above-described embodiment shown in FIG.

The gripping tool of the present invention can grip and transport an article by attaching a suspension hook to the trunk as shown in FIG.
As shown in FIG. 11, when a new process is performed by gripping a pipe, a pedestal portion may be provided on the body portion, and the pedestal portion may be formed so as to be compatible with each simple processing machine.

If the article is a tube or a round bar, the shape of the tube supporting portion of the body may be formed in an arc shape. If the article is a polygon, the shape of the tube supporting portion may be polygonal. , Each can be formed according to the shape of the article.

Further, if one set of claws is used, it is suitable for a small article, and if it is two sets or more, it can be easily gripped for a long one, and its center of gravity can be visually grasped. . Further, the positions of the claws and the body are not limited to the above-described embodiments, and the body may be formed so as to extend beyond the positions of the claws.

[0033]

According to the present invention, an article gripper for gripping and fixing an article, comprising at least one set of openable and closable claw means, and a body supporting the claw means is provided. Wherein the claw means has two opposing arms, each arm being pivotally supported by the body at its base and having a grip at its tip,
At the base of the claw means, there is provided a lock means for rotating the respective arms in the closing direction at the same time, so that an article is gripped by a part of the body part and the grip part. Then, the locking means is loosened to open the respective arms, and after each arm moves along the outer peripheral surface of the article to pinch the article, the article can be firmly gripped by tightening the locking means. Therefore, the amount of opening and closing of the arm can be minimized, and the article can be easily gripped even in a narrow space.

Further, in the article gripping device, the body has the arc-shaped article support portion and the suspension hook is provided, so that it is suitable for gripping and suspending the tube. is there.

The article gripper is for gripping and fixing an article, and has at least one pair of openable and closable claw means, and a body supporting the claw means. The claw means is formed with two opposing arms, each arm being pivotally supported at the base by the body and having a gripping portion at the tip, A lock means for rotating the respective arms in a direction for simultaneously closing the respective arms is provided, a pedestal portion for mounting a simple processing machine, and a hole for processing are formed in the body portion, and the body portion has An article is formed to be gripped by a part and the gripping portion. After the article is gripped by the claws and a part of the body, the simple processing machine is attached to the pedestal of the body, and new processing can be performed on the article.

Further, in this article gripping device, a part of the body portion for gripping the article and the gripping portion are processed to prevent slipping, so that the article does not slip down when gripping and transporting.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a gripper according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the gripper shown in FIG. 1 taken along the line II-II.

FIG. 3 is a cross-sectional view of the same III-III.

FIG. 4 is a view showing the operation of the gripper in FIG. 1;

FIG. 5 is a view showing the operation of the gripping tool in FIG. 1;

FIG. 6 is a view showing the operation of the gripper in FIG. 1;

FIG. 7 is a view showing the operation of the gripping tool in FIG. 1;

FIG. 8 is a view showing a state in which an article is suspended by the gripper of FIG. 1;

FIG. 9 is a view showing another form of the gripper;

FIG. 10 is a diagram showing a state in which a drilling machine is attached to the gripping tool of FIG. 9;

FIG. 11 is a view showing a gripper of still another embodiment.

FIG. 12 is a perspective view showing a conventional gripper.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Grasping tool 2 ... Body part 3 ... Claw part 4 ... Lock part 21 ... Tube support part 22 ... Claw support part 23 ... Support plate 25 ... Rubber plate 26 ... Suspension hook 31 ... Arm 32 ... Washer locking part 33 ... Grip part 41 ... Male screw 42 ... Nut 43 ... Washer 43a ... Arm locking part

Claims (4)

[Claims] 1. An article gripper for gripping and fixing an article, comprising: at least one pair of openable and closable claw means; and a body supporting the claw means. A claw means having two opposing arms, each arm being pivotally supported by the body at the base and having a grip at the tip, and each being formed at the base of the claw means, An article gripper, comprising: a lock unit that rotates in a direction in which the arms are simultaneously closed. The article gripper is formed so that an article is gripped by a part of the body and the gripper. 2. The article tube gripping tool according to claim 1, wherein the body has an arc-shaped article support section and a suspension hook is provided. 3. An article gripper for gripping and fixing an article, comprising: at least one pair of openable and closable claw means; and a body supporting the claw means. A claw means having two opposing arms, each arm being pivotally supported by the body at the base and having a grip at the tip, and each being formed at the base of the claw means, A lock means that rotates in a direction to simultaneously close the arms is provided. A pedestal portion for attaching a simple processing machine and a hole for processing are formed in the body portion, and a part of the body portion and the An article gripper characterized by being formed so as to grip an article with a gripping part. 4. The article gripping tool according to claim 1, wherein a part of a body part gripping the article and the gripping part are non-slip processing.